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  1. #1
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    X5M catted downpipes

    Anyone have any good experience with any of them?

    Thanks

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    Moving this to S63 V8.

    You've already looked into pipes right? Which ones so far?

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    I've looked at the pictures of the EFI,AR and I think AP. I don't understand why the do not hve the flex pipes like the OE ones do. I know when I'm driving my car had you can kind of feel the engine flexing a tad bit. I'd assume that's why BMW has the flex pipe in there from the get go. So on these aftermarket ones that supposedly make more power wouldn't it be smart to keep that flex pipe in there? Wouldn't the welds crack over time, and cause leaks? It's not like the downpipes are a easy 10
    min swap.

    I think I'm going to stay away for the HFC downpipes till I see ones with that flex pipe in them. I'm not an engineer or anything, but to me it seems like common sense.


    With that being said, I think I'm going to start looking at tunes. So far I'm kinda of liking what valos has. I do like the option of being able to remove the software before I have to take in it to the stealership. But the real question is can bmw see the tune even after its been removed from the DME? That's what scares me. Don't want to void the warranty on it.

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    best thing to do:


    have a problem? pull the tune out.
    go drive it for a few hundred miles. see if the fault happens.
    if it does, THEN bring it in.


    I would question the validity of some faults when it showed the control module was cleared literally a few miles ago.... and if I can see that in ISTA, your DAMN SURE that BMW can see that with FASTA.

    they see so much more raw data than we do, its not even funny.
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  5. #5
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    And that's what I'm worried about. Hell, it's my x5m I own it so I should be able to do whatever I want to it. But I'm sure if I void the warranty, it's going to be very expensive to fix. This is what kind of keeps pushing me back to Dinan's overpriced product. I really wish burgers JB worked on it. It's the best idea if it worked.


    Click here to enlarge Originally Posted by alex@ABRhouston Click here to enlarge
    best thing to do:


    have a problem? pull the tune out.
    go drive it for a few hundred miles. see if the fault happens.
    if it does, THEN bring it in.


    I would question the validity of some faults when it showed the control module was cleared literally a few miles ago.... and if I can see that in ISTA, your DAMN SURE that BMW can see that with FASTA.

    they see so much more raw data than we do, its not even funny.

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    Click here to enlarge Originally Posted by Hansel22 Click here to enlarge
    And that's what I'm worried about. Hell, it's my x5m I own it so I should be able to do whatever I want to it. But I'm sure if I void the warranty, it's going to be very expensive to fix. This is what kind of keeps pushing me back to Dinan's overpriced product. I really wish burgers JB worked on it. It's the best idea if it worked.
    Why doesn't it work? He has an M5 tune...

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    No idea. I tested it, and sent terry the logs and it just didn't make any power. He decided that it doesn't work and didn't have a truck to run tests on.



    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Why doesn't it work? He has an M5 tune...

  8. #8
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    Click here to enlarge Originally Posted by Hansel22 Click here to enlarge
    No idea. I tested it, and sent terry the logs and it just didn't make any power. He decided that it doesn't work and didn't have a truck to run tests on.
    That's really weird. I haven't seen anyone running a piggyback on the X5M and Terry hasn't really pushed S63/S63tu stuff hard.

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    I know. Oh Well, I did offer to keep it on and go to the track and email all of the logs to see what's up.

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    I know his stuff makes power, my friend has it on his 335 and that thing is fast. I think it it would be awesome if it did work on the x5m, takes maybe 20min to install and the price is good. No BMW tax with his stuff. Who knows maybe if he decided to try it again ill buy it.

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    Click here to enlarge Originally Posted by Hansel22 Click here to enlarge
    I know his stuff makes power, my friend has it on his 335 and that thing is fast. I think it it would be awesome if it did work on the x5m, takes maybe 20min to install and the price is good. No BMW tax with his stuff. Who knows maybe if he decided to try it again ill buy it.
    I'm sure he'll get there.

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    If he does, I'll buy it again. But he didn't sound like there's that much of a market for it.


    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    I'm sure he'll get there.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    That's really weird. I haven't seen anyone running a piggyback on the X5M and Terry hasn't really pushed S63/S63tu stuff hard.
    Yes I think the X5M is probably using MAF based tuning rather than MAP based tuning. So no piggyback is going to work for it, at least at the moment. We may revisit it when doing N63 Stage2.
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    Click here to enlarge Originally Posted by Hansel22 Click here to enlarge
    But the real question is can bmw see the tune even after its been removed from the DME? That's what scares me. Don't want to void the warranty on it.
    Hansel,
    You need to do some reading on the Magnuson-Moss warranty act of 1975. It is the overall law governs warranties in the US. There is a very clear portion that specifically sates that the manufacturer must prove that the changes or actions of the user caused the damage.

    "If the damage associated with a warranted consumer product can be proven by the warrantor to have been caused by damage once the product had left the place of purchase or by unreasonable use, the warrantor’s responsibilities under the Act are waived."

    The dealer can claim your tune caused the damage. Tell them to PROVE that the tune caused the damage. I have had this discussion with Ford on a supercharged mustang. I challenged them and they made the repair (failed torque converter).

  15. #15
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    There are things that BMW allowed us to find modded DME's at the dealer level.

    i assure you they have ways of looking into it as well to see if its been modified.
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    Alex,
    I work designing computer systems for the finance industry. I am willing to bet that BMW stores data for when certain parameters are outside of the expected values. That would be a basic troubleshooting diagnostic tool. That would also allow them to make educated assumptions that the vehicle had a tune added. There is also a possibility that they have an audit trail of every change to the tune (not likely; but, possible.)

    The key is that even if you have tuned your vehicle, they cannot deny you warranty coverage. They need to prove that the changes you made the cause of the failure. That is far more difficult than saying that the think the tune caused the problem.

    In my case, the torque converter that failed was that same part number in the Shelby GT Mustangs, so it was already proven to handle the HP that.

    I will admit that I chose a Dinan tune so I would not have to worry about warranty fights (I am getting older and mellowing.)

    And off topic, any turbo upgrades for a 2012 X5 50i?

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    No, I understand what your saying and fight with them as well.

    when I had my lightning that was completely stock sans a K&N air filter, it spit out a spark plug (common issue)..... Ford wanted to deny me warranty because of the air filter :shaking:

    when I worked at the dealership I didn't mind bolt on cars. As long as it didnt interfere with my work I didn't care.

    for some reason, some techs and foreman get a hard-on looking for aftermarket parts and flagging the car.... Like its some ego thing or whatever.
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    So I decided to call BMW NA after not finding a solid answer about the dinan tune & the warranty. They said, that it doesn't not void the whole warranty on the truck and if in fact the tune did cause something to break than its on Dinan. They also said its the same for any other tune out there.

    I don't know, still what to go with. On my B8 S4 I have apr tune, pulley, downpipes and exhaust and audi always fixes it with out any problems. No questions asked at all. My SA does like to take it out to make sure it's fixed tho. Lol

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    Click here to enlarge Originally Posted by Hansel22 Click here to enlarge
    So I decided to call BMW NA after not finding a solid answer about the dinan tune & the warranty. They said, that it doesn't not void the whole warranty on the truck and if in fact the tune did cause something to break than its on Dinan. They also said its the same for any other tune out there.

    I don't know, still what to go with. On my B8 S4 I have apr tune, pulley, downpipes and exhaust and audi always fixes it with out any problems. No questions asked at all. My SA does like to take it out to make sure it's fixed tho. Lol
    Don't talk to BMW or your dealer about tunes it will just raise flags.

    If you flash back to stock they have to prove something went wrong.

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    I didn't give BMWNA my vin or anything. Just a random call. Lol. My SA I'm not worried about, he knows I race this thing and does go to the track too.


    What tune would you suggest?

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    Click here to enlarge Originally Posted by Hansel22 Click here to enlarge
    I didn't give BMWNA my vin or anything. Just a random call. Lol. My SA I'm not worried about, he knows I race this thing and does go to the track too.


    What tune would you suggest?
    I understand just letting you know not to get too friendly with the dealer and tell them your plans, they aren't your friends.

    You have several tune options AA's flash seems to your best option right now. OE Tuning is an option as well.

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    We just tuned another X5m last week so I figured I would show you guys what a Tune only X5m looks like from 0 without launch control. The customer will be coming back for a set of our downpipes so I will post another video shortly.


    Last edited by Andrew@activeautowerke; 08-20-2013 at 03:46 PM.

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    Click here to enlarge Originally Posted by Andrew@activeautowerke Click here to enlarge
    We just tuned another X5m last week so I figured I would show you guys what a Tune only X5m looks like from 0 without launch control. The customer will be coming back for a set of our downpipes so I will post another video shortly.


    http://www.youtube.com/watch?v=EBLboagQV6s



    Flying!!!

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    Click here to enlarge Originally Posted by Andrew@activeautowerke Click here to enlarge
    We just tuned another X5m last week so I figured I would show you guys what a Tune only X5m looks like from 0 without launch control. The customer will be coming back for a set of our downpipes so I will post another video shortly.


    http://www.youtube.com/watch?v=EBLboagQV6s
    Pulls hard. Any progress on a n63 tune?

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