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    4 out of 4 members liked this post. Yes Reputation No

    Cobb E7X N55 Tune

    In development - quick teaser!
    Click here to enlarge

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    NICE!!!! let us know how it feels after being tuned.
    08 335i | Space Gray | Burl Walnut Wood Trim | Sport pkg | Premium Pkg | LOGIC7 | Navi | Comfort Access


    | COBB | Injen DCI | Active Autowerke | Sonic Tuning | E92 Lighting | ER | HKS | BMS |

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    How are you running E7x Maps on the N55 when the N54 is only getting E30?!?
    COBB AP ProTune by Bren of ///Bren Tuning
    Akrapovic DP | Helix FMIC | Alpina TCM Flash | Walbro 450LPH Fuel Pump


    "The moment money becomes your motivation, you are immediately not as good as someone who is motivated by passion and internal will." -A. Senna

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    Click here to enlarge Originally Posted by benzy89 Click here to enlarge
    How are you running E7x Maps on the N55 when the N54 is only getting E30?!?
    lol not ethanol content - E7X as in the x5 and x6.

    The AP is able to clear codes just fine on my x6 - I have faith in Cobb that they can drive this over the finish line and hopefully I will have an ECU file to test soon!

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    Click here to enlarge Originally Posted by pho_e92 Click here to enlarge
    NICE!!!! let us know how it feels after being tuned.
    Running JB3 stage 1 right now and a catless downpipe so it feels pretty good as it is but looking to Cobb to take this to the next level - ie solve the check engine light, perhaps a custom tune and also, eliminate the throttle lag the N55 is cursed with on this platform. All in due time, as its in very early stages right now.

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    Click here to enlarge Originally Posted by turkish335 Click here to enlarge
    Running JB3 stage 1 right now and a catless downpipe so it feels pretty good as it is but looking to Cobb to take this to the next level - ie solve the check engine light, perhaps a custom tune and also, eliminate the throttle lag the N55 is cursed with on this platform. All in due time, as its in very early stages right now.
    Sucks to have lag. hopefully cobb comes through for you bro. im crossing my fingers for it. otherwise you sticking at the back of the group on the cruises lol.
    08 335i | Space Gray | Burl Walnut Wood Trim | Sport pkg | Premium Pkg | LOGIC7 | Navi | Comfort Access


    | COBB | Injen DCI | Active Autowerke | Sonic Tuning | E92 Lighting | ER | HKS | BMS |

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    Click here to enlarge Originally Posted by pho_e92 Click here to enlarge
    Sucks to have lag. hopefully cobb comes through for you bro. im crossing my fingers for it. otherwise you sticking at the back of the group on the cruises lol.
    hahah I know, at least my wheels don't rub anymore! Ill have to come out for a cruise soon, been too long!

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    Ohh man this is exciting.
    Goodstuff
    07 338xi | TiAG | Premium Pkg | Carbon Fiber Trim Wrap | E90 | BMW Perf. Intake | BMW Perf. Exhaust | Active Autowerke Stage 2 | 3 Stage Intake Manifold | KW V1 | Euro Xenon Headlights | VMR V710 | Custom Car Coding |
    See my dyno results---> http://bimmerboost.com/showthread.ph...ified-AA-FLASH)

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    This... is good news. I want to see impressions but also really, really want to see a graph.

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    Not sure if you guys are talking about lag in throttle response or boost coming on, cause they're two VERY different things. I've never driven an N55 equipped car, so I can't relate
    COBB AP ProTune by Bren of ///Bren Tuning
    Akrapovic DP | Helix FMIC | Alpina TCM Flash | Walbro 450LPH Fuel Pump


    "The moment money becomes your motivation, you are immediately not as good as someone who is motivated by passion and internal will." -A. Senna

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    3 out of 3 members liked this post. Yes Reputation No
    quick update: submitted my file to Cobb thursday evening and they had the beta firmware for me to test yesterday afternoon. I loaded that on this afternoon and took a quick drive - and the car feels great. The lag is virtually gone and the pickup in power is impressive.

    I will post a more detailed review soon but its a thumbs up so far and I would recommend those who are on the fence to pick up an accessport and get in touch with Cobb to get your ECU supported and start testing!

    Click here to enlarge
    Click here to enlarge
    Click here to enlarge


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    ^ AWESOME!!!

    Can't wait to see the numbers...

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    @bulldog x6 - NICE!!! cant wait for the review. Glad to hear that the ride is much smoother now.
    08 335i | Space Gray | Burl Walnut Wood Trim | Sport pkg | Premium Pkg | LOGIC7 | Navi | Comfort Access


    | COBB | Injen DCI | Active Autowerke | Sonic Tuning | E92 Lighting | ER | HKS | BMS |

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    Click here to enlarge Originally Posted by desi4life10 Click here to enlarge
    Ohh man this is exciting.
    Goodstuff
    hey mind BBMing me where you got dyno'd? thx bro
    Cobb Tuned x6 N55 | Custom Catless downpipe | K&N drop in

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    Hey good stuff Tuk! Click here to enlarge
    Click here to enlarge

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    Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
    Hey good stuff Tuk! Click here to enlarge
    thanks D, lots more to do but a good start nonetheless
    Cobb Tuned x6 N55 | Custom Catless downpipe | K&N drop in

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    2 out of 2 members liked this post. Yes Reputation No
    Here is a quick review of my experience with the Cobb flash tune for the N55 powered x5/x6 platforms (35i versions). Feel free to message Rob@Cobb (Rob@cobbtuning.com) or PM me if you want more detailed feedback beyond this review.


    Background:
    I had the Cobb flash on my 335i (full bolt ons) and was very impressed with the tune's drivability and power. The ease of clearing codes and built in downpipe fix, as well as the logging abilities was impressive. Most importantly, I found the car's response (vs. piggyback tunes) was much better with the Cobb tune. In all fairness, I was not running the JB with CAN integration so there was probably some advancement in that area that I did not get to test out. Nonetheless, with the flash tune there was no delay or lag between the time you went WOT and boost kicking in, throwing you to the back of the seat.


    Fast forward to today:
    335 is long gone, traded for an x6. Realistically, I should have got the 50i or the x6 M but other priorities in life called for a more modest 35i decision. I was keen on extracting the maximum amount of power from the N55; it was adequate from the factory, but you could really feel the weight of the vehicle.


    The previous tune and alternatives:
    I initially had the JB3 Stage 1 tune on the truck. Great tune - worked perfectly as advertised. A decent amount of user adjustment made this a good tune, for a stage 1 truck (tune only). Once I installed the downpipe, I found that I needed a bit more than a stage 1 tune (DP fix, better tuning, more precise A/F control with the downpipe). The JB3 is a perfect tune for those that want a simple install and are happy with a stage 1 experience - as I said, tough to beat for the price. Unfortunately, N55 Stage 2 is not available on the E7X platform (it is for the F10 and E9X however) and Im not sure if it will be ever released (I guess it depends on demand). The only other option was a bespoke flash tune, but that would require the ECU to be removed to be bench flashed and I am not aware of local vendors that offered this service, meaning the ECU would have to be shipped to be flashed/re-flashed in case of an issue, upgrade or dealer visit. Its actually not that big of a deal but having zero time for this, I decided that I would need a simpler, ODB flash tune solution.


    The solution for me: Cobb
    http://blogs.cobbtuning.com/2012/12/...35i-and-335xi/
    Cobb released their flash tune for the N55 in December for the 335 and 135 platforms. I immediately got in touch with Rob to see if they would support development on the E7X. To make a long story short, I picked up an Accessport from Mike@N54tuning, read the ECU file and sent it to Cobb. I had an email within 24 hours saying that they had firmware for me to test. I loaded up the firmware (super easy install process, more on that below) and went for a drive. Another benefit is that the AP can read and clear codes. So if you are on the road and ever get a check engine light or some other error, you can simply plug in the AP and make note of the error and/or clear the code. Finally, the AP is can be uninstalled in 15-20 mins again, and can re-write your original ECU file back to the truck so it is invisible to the dealer. Always uninstall your tune before going in for service!


    The Install:
    Note **I would advise messaging or emailing Rob@Cobb to coordinate BEFORE you get the AP as the x5/x6 is not officially supported yet. You can reach Rob at: Rob@cobbtuning.com **
    Super easy - if you can use an ipod, you can use this tune. Time is about 15-20 minutes and is literally, plug an play. No need to go under the hood at all for those folks who are uncomfortable with that.
    Cobb has done an install video for the N54 based tune. The install is basically the same.



    Here are a couple of other notes/pointers to help you along:
    1) Install AP Manager 2.0 if you haven't done so already. Once the software is installed, go ahead and load it up. You can find AP manager here:
    http://www.cobbtuning.com/AccessPORT...rt-s/40200.htm


    2) Plug in your AccessPORT. If you have Windows XP, make sure you click on the "Found new hardware" prompt to install the driver for the AccessPORT. If you have Windows Vista or Windows 7 the driver will be installed automatically.


    3) Click on Options in the upper left corner and check the box for "Check for beta firmware." This step is critical.
    Click here to enlarge


    4) Click on Updates in the upper left corner and click on the "Begin firmware update" button in the upper right corner. The firmware update should only take a few minutes. There may not be an update available; thats fine, its better practice to check anyways. If you did update, and when the update is done, eject your AccessPORT and close down AP Manager.


    5) Plug the AP into the ODB connector (the connection is below the steering wheel, above the pedals in the trim, on the drivers side, to the right of the hood latch - google if you cant find the location but its pretty easy) and read your ECU. Select the install option and you will find that your ECU is probably not supported, so it will prompt you to read the file - follow the prompts.


    There will be a bunch of errors during the read that come up on idrive. DO NOT WORRY. THESE ARE TEMPORARY AND ARE CLEARED ONCE YOU ARE DONE. DO NOT DISCONNECT THE AP, OPEN DOORS OR MESS AROUND WITH THE CAR IN ANY WAY DURING THE READ PROCESS.
    Click here to enlarge


    The cobb AP (access port, the hand held device) will read the file in your vehicle. You need this as not all ECU's are supported initially but no big deal, I got a response from Cobb within a day so you should be good to go within a day or two.


    Flashing: see video or follow same steps. Plug in AP and select install, confirm your DME version (ask Cobb if you are not sure) and select map. Sport is for 91 octane and aggressive is for 93+ Octane. Run the right map for the octane available in your area - running aggressive on 91 octane will be DETRIMENTAL so either fill up with higher octane or stick to the sport map. Follow the instructions on the AP. There will be a bunch of errors again and again, you can disregard them - they will go away after the tune is installed.


    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge


    Initial impressions:
    So at this point, I have about an hour of driving the truck with the tune. Initial feedback is excellent. There is virtually ZERO lag with this tune. I found the stock tune (and the Jb3 once you started increasing boost to +5 levels) had a lot of lag. This lag, combined with the heavy weight of the truck, made for a dissapointing driving experience in certain situations. It felt like I had to time pressing the gas pedal to not get stuck in the lag zone sometimes, ie going up a hill or going from partial throttle to full throttle for example. The Cobb tune totally removed this feeling - power was available all the time and it seems that the transmission was better at shifting. I can now drive the truck in D mode instead of DS.


    Now for the power - awesome. The weight of the truck is now a less of an issue and power delivery is instantaneous. The power feels equal (just from feel) to the JB3 in default settings (around +3 PSI I think?) but the way the power is delivered is superior. Clearly, there is a trade off as the Cobb is only in stage 1 form and the JB3's boost can be upped to whatever you want (+5 PSI will put down more than the Cobb stage 1). But looking forward, Cobb should have the Stage 2 maps released before fall, so for those with heavier mods (like downpipes, intercooler - which I will soon be doing) can take advantage of those maps. Also, Cobb will have full custom tuning support once ATR works with the N55 tunes - this is the real advantage in the future for this tune!


    More to come and I may throw a quick video together as well.
    Thanks Cobb!


    *full disclosure: I was not compensated or offered a discount in any way for this review. I simply offered to work with Cobb in helping develop a tune for the e7x platform, which I am happy they were able to do.
    ** The tune is still in beta (early stages) of its evolution. If you are unsure of any of these steps, do more research or contact Cobb. I have had a perfect experience with this tune so far but that is not guaranteed for everyone. While the risks appear to be minimal, they are still there with ANY type of tune so understand these and get comfortable with them. Always uninstall your tune before you take your truck in for service.
    Cobb Tuned x6 N55 | Custom Catless downpipe | K&N drop in

  18. #18
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    Click here to enlarge Originally Posted by bulldog x6 Click here to enlarge
    Here is a quick review of my experience with the Cobb flash tune for the N55 powered x5/x6 platforms (35i versions). Feel free to message Rob@Cobb (Rob@cobbtuning.com) or PM me if you want more detailed feedback beyond this review.


    Background:
    I had the Cobb flash on my 335i (full bolt ons) and was very impressed with the tune's drivability and power. The ease of clearing codes and built in downpipe fix, as well as the logging abilities was impressive. Most importantly, I found the car's response (vs. piggyback tunes) was much better with the Cobb tune. In all fairness, I was not running the JB with CAN integration so there was probably some advancement in that area that I did not get to test out. Nonetheless, with the flash tune there was no delay or lag between the time you went WOT and boost kicking in, throwing you to the back of the seat.


    Fast forward to today:
    335 is long gone, traded for an x6. Realistically, I should have got the 50i or the x6 M but other priorities in life called for a more modest 35i decision. I was keen on extracting the maximum amount of power from the N55; it was adequate from the factory, but you could really feel the weight of the vehicle.


    The previous tune and alternatives:
    I initially had the JB3 Stage 1 tune on the truck. Great tune - worked perfectly as advertised. A decent amount of user adjustment made this a good tune, for a stage 1 truck (tune only). Once I installed the downpipe, I found that I needed a bit more than a stage 1 tune (DP fix, better tuning, more precise A/F control with the downpipe). The JB3 is a perfect tune for those that want a simple install and are happy with a stage 1 experience - as I said, tough to beat for the price. Unfortunately, N55 Stage 2 is not available on the E7X platform (it is for the F10 and E9X however) and Im not sure if it will be ever released (I guess it depends on demand). The only other option was a bespoke flash tune, but that would require the ECU to be removed to be bench flashed and I am not aware of local vendors that offered this service, meaning the ECU would have to be shipped to be flashed/re-flashed in case of an issue, upgrade or dealer visit. Its actually not that big of a deal but having zero time for this, I decided that I would need a simpler, ODB flash tune solution.


    The solution for me: Cobb
    http://blogs.cobbtuning.com/2012/12/...35i-and-335xi/
    Cobb released their flash tune for the N55 in December for the 335 and 135 platforms. I immediately got in touch with Rob to see if they would support development on the E7X. To make a long story short, I picked up an Accessport from Mike@N54tuning, read the ECU file and sent it to Cobb. I had an email within 24 hours saying that they had firmware for me to test. I loaded up the firmware (super easy install process, more on that below) and went for a drive. Another benefit is that the AP can read and clear codes. So if you are on the road and ever get a check engine light or some other error, you can simply plug in the AP and make note of the error and/or clear the code. Finally, the AP is can be uninstalled in 15-20 mins again, and can re-write your original ECU file back to the truck so it is invisible to the dealer. Always uninstall your tune before going in for service!


    The Install:
    Note **I would advise messaging or emailing Rob@Cobb to coordinate BEFORE you get the AP as the x5/x6 is not officially supported yet. You can reach Rob at: Rob@cobbtuning.com **
    Super easy - if you can use an ipod, you can use this tune. Time is about 15-20 minutes and is literally, plug an play. No need to go under the hood at all for those folks who are uncomfortable with that.
    Cobb has done an install video for the N54 based tune. The install is basically the same.
    http://www.youtube.com/watch?v=mXMHBSZc3JY


    Here are a couple of other notes/pointers to help you along:
    1) Install AP Manager 2.0 if you haven't done so already. Once the software is installed, go ahead and load it up. You can find AP manager here:
    http://www.cobbtuning.com/AccessPORT...rt-s/40200.htm


    2) Plug in your AccessPORT. If you have Windows XP, make sure you click on the "Found new hardware" prompt to install the driver for the AccessPORT. If you have Windows Vista or Windows 7 the driver will be installed automatically.


    3) Click on Options in the upper left corner and check the box for "Check for beta firmware." This step is critical.
    http://img.photobucket.com/albums/v6...ps723e4d45.jpg


    4) Click on Updates in the upper left corner and click on the "Begin firmware update" button in the upper right corner. The firmware update should only take a few minutes. There may not be an update available; thats fine, its better practice to check anyways. If you did update, and when the update is done, eject your AccessPORT and close down AP Manager.


    5) Plug the AP into the ODB connector (the connection is below the steering wheel, above the pedals in the trim, on the drivers side, to the right of the hood latch - google if you cant find the location but its pretty easy) and read your ECU. Select the install option and you will find that your ECU is probably not supported, so it will prompt you to read the file - follow the prompts.


    There will be a bunch of errors during the read that come up on idrive. DO NOT WORRY. THESE ARE TEMPORARY AND ARE CLEARED ONCE YOU ARE DONE. DO NOT DISCONNECT THE AP, OPEN DOORS OR MESS AROUND WITH THE CAR IN ANY WAY DURING THE READ PROCESS.
    http://img.photobucket.com/albums/v6...ps26d00e89.jpg


    The cobb AP (access port, the hand held device) will read the file in your vehicle. You need this as not all ECU's are supported initially but no big deal, I got a response from Cobb within a day so you should be good to go within a day or two.


    Flashing: see video or follow same steps. Plug in AP and select install, confirm your DME version (ask Cobb if you are not sure) and select map. Sport is for 91 octane and aggressive is for 93+ Octane. Run the right map for the octane available in your area - running aggressive on 91 octane will be DETRIMENTAL so either fill up with higher octane or stick to the sport map. Follow the instructions on the AP. There will be a bunch of errors again and again, you can disregard them - they will go away after the tune is installed.


    http://img.photobucket.com/albums/v6...ps07d9c4a5.jpg
    http://img.photobucket.com/albums/v6...psc0b91e09.jpg
    http://img.photobucket.com/albums/v6...ps3f32446f.jpg
    http://img.photobucket.com/albums/v6...psfb0746d0.jpg
    http://img.photobucket.com/albums/v6...ps5a0675e3.jpg
    http://img.photobucket.com/albums/v6...psba9a49c4.jpg
    http://img.photobucket.com/albums/v6...ps78322fca.jpg


    Initial impressions:
    So at this point, I have about an hour of driving the truck with the tune. Initial feedback is excellent. There is virtually ZERO lag with this tune. I found the stock tune (and the Jb3 once you started increasing boost to +5 levels) had a lot of lag. This lag, combined with the heavy weight of the truck, made for a dissapointing driving experience in certain situations. It felt like I had to time pressing the gas pedal to not get stuck in the lag zone sometimes, ie going up a hill or going from partial throttle to full throttle for example. The Cobb tune totally removed this feeling - power was available all the time and it seems that the transmission was better at shifting. I can now drive the truck in D mode instead of DS.


    Now for the power - awesome. The weight of the truck is now a less of an issue and power delivery is instantaneous. The power feels equal (just from feel) to the JB3 in default settings (around +3 PSI I think?) but the way the power is delivered is superior. Clearly, there is a trade off as the Cobb is only in stage 1 form and the JB3's boost can be upped to whatever you want (+5 PSI will put down more than the Cobb stage 1). But looking forward, Cobb should have the Stage 2 maps released before fall, so for those with heavier mods (like downpipes, intercooler - which I will soon be doing) can take advantage of those maps. Also, Cobb will have full custom tuning support once ATR works with the N55 tunes - this is the real advantage in the future for this tune!


    More to come and I may throw a quick video together as well.
    Thanks Cobb!


    *full disclosure: I was not compensated or offered a discount in any way for this review. I simply offered to work with Cobb in helping develop a tune for the e7x platform, which I am happy they were able to do.
    ** The tune is still in beta (early stages) of its evolution. If you are unsure of any of these steps, do more research or contact Cobb. I have had a perfect experience with this tune so far but that is not guaranteed for everyone. While the risks appear to be minimal, they are still there with ANY type of tune so understand these and get comfortable with them. Always uninstall your tune before you take your truck in for service.
    Excellent synopsis. I can't wait to try the Cobb tune out myself.

    Seems you really prefer the power delivery over the JB.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Excellent synopsis. I can't wait to try the Cobb tune out myself.

    Seems you really prefer the power delivery over the JB.
    Correct - delivery wise, its actually smoother than the stock tune, which is great as the x6 with 8spd trans is quite jerky from stops. This has cleaned it up in my opinion and feels like more power under the curve (from the butt dyno anyways) on an equal boost setting of say +2.5-3psi on the JB3 stage 1.
    For sure, the Jb3 will have more power since boost can be adjusted much higher than the Cobb S1 at the moment. BUT, since there is no hope of a stage 2 for the E7X platform with JB, Cobb was willing to work with me to establish the platform which was really the deal closer; I need a built in DP fix and also better A/F control, specially with a downpipe now, than what S1 can offer. Cobb should really shine with their stage 2 and higher maps, and even more so when they offer custom tuning so I can really dial in the mods (intercooler to come this spring).
    Cobb Tuned x6 N55 | Custom Catless downpipe | K&N drop in

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    Great in-depth review. Glad you're liking it, sounds like all N55s are reporting satisfaction with their Stage 1s so far. Can't wait for ATP release so we can take OTS maps further
    Click here to enlarge

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    Great write up and review... Alas I am no longer modding my X5, wife is getting the X when I get back from this deployment.
    2013 Dodge Challenger R/T: CAI, Catch Can, Shorty Headers, Custom Exhuast, M.M. 87mm Throttle Body, DiabloToona Custom 93 Oct Tune, 190* Thermostat, Seibon CF Grille, 6.4 CAM, Inertia M.S Ported Cylinder Heads
    Pending Mods: T/A Hood, S/C

    2011 X5 35i Premium: Black Grille, Boopie Custom 3" Dual Exhaust & Custom N55 FMIC, JB3 (+3psi)

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    Click here to enlarge Originally Posted by FLYING X5 Click here to enlarge
    Great write up and review... Alas I am no longer modding my X5, wife is getting the X when I get back from this deployment.
    get back safe and congrats on the new ride. Im sure the W will like the x.
    Cobb Tuned x6 N55 | Custom Catless downpipe | K&N drop in

  23. #23
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    Nice review! I can't say there will ever be a JB Stage2 for the E7X. But I can't say there never will be either. As you said it all depends on demand. But I'm glad to see Cobb is supporting the platform.

    One option if you need a little more kick until they release higher stage maps would be to run the Stage1 along with the Cobb flash map, only using a small gain. Like 1 or 1.5psi over stock. Cobb's advance and AFR maps are typically overly conservative. I did a few logs using their E90 N55 map and boost was only around 11-12psi in the midrange with 3-4 degrees of advance. Overall performance was very similar to our Stage1. There is definitely a lot on the table to be had with a custom flash tune or tune stack until then especially given your downpipe. Click here to enlarge
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    Home of the Worlds fastest N20s, N54s, N55s, N63s, S55s, and S63s!

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    Thanks Terry - hard to beat the JB3 for the price and it really is a great tune for Stage 1. I just need that damn CEL to go away and hopefully cobb can help there.

    Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
    Nice review! I can't say there will ever be a JB Stage2 for the E7X. But I can't say there never will be either. As you said it all depends on demand. But I'm glad to see Cobb is supporting the platform.

    One option if you need a little more kick until they release higher stage maps would be to run the Stage1 along with the Cobb flash map, only using a small gain. Like 1 or 1.5psi over stock. Cobb's advance and AFR maps are typically overly conservative. I did a few logs using their E90 N55 map and boost was only around 11-12psi in the midrange with 3-4 degrees of advance. Overall performance was very similar to our Stage1. There is definitely a lot on the table to be had with a custom flash tune or tune stack until then especially given your downpipe. Click here to enlarge
    Cobb Tuned x6 N55 | Custom Catless downpipe | K&N drop in

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    Some additional feedback from testing over the last couple of days:

    - noticed the truck's exhaust is deeper and louder. I can't say it sounds like a v8 (Ill keep dreaming) but there is a more pronounced growl. Turbo is also easier to hear now.
    - power has improved a bit - I imagine due to some adaptations, not a ton more than the first day but definitely more and more refined. Still virtually lag free.
    - the tune performs flawlessly in a variety of temperatures. We have had -15 to +15 C weather here in the past week. Everyone knows our cars are temperamental sometimes being turbo charged but the results with the cobb tune have been very consistent. Also, no over boost codes either, which some tunes suffer from in cold weather.
    Cobb Tuned x6 N55 | Custom Catless downpipe | K&N drop in

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