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  1. #1
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    Question Muffler delete on an e92?

    What do you guys think of the muffler delete on the e92? I want a little louder exhaust but nothing too crazy. I currently have the golf tee mod. I don't want to shell out $1.2k on the PE.

    I have heard mixed reviews on the droning, and honestly, even with the golf tee mod, it drones a little. I'm not too worried about drone since I always have my music on anyways.

    A couple questions regarding the muffler delete...
    - Can I use the stock tips? Or must I use after market tips? Will aftermarket tips affect the sound at all?
    - What after market tips would you guys recommend?
    - If I end up not liking the mod, can I always put the muffler back onto the exhaust system?

    Thanks in advance.
    2010 335i Coupe- Monaco Blue Metallic

    CF performance spoiler // VMR V701 18x8.5 (front) 18x9.5 (rear)

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    Do you already have catless downpipes?
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    Click here to enlarge

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    If you are going to go catless in the downpipes, dont do it.

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    I do not plan on going catless. I heard that going catless will be impossible to pass emissions in california.
    2010 335i Coupe- Monaco Blue Metallic

    CF performance spoiler // VMR V701 18x8.5 (front) 18x9.5 (rear)

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    sounds like crap

    don't bother
    Click here to enlarge

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    Click here to enlarge Originally Posted by tofu Click here to enlarge
    sounds like crap

    don't bother
    Can I ask what about it don't you like? I was 75% sure I was going to do it as my next mod, but all opinions welcome. I don't want to regret it, especially since I have yet to hear a 335i muff delete in person.
    2010 335i Coupe- Monaco Blue Metallic

    CF performance spoiler // VMR V701 18x8.5 (front) 18x9.5 (rear)

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    Click here to enlarge Originally Posted by 1chanc3 Click here to enlarge
    Can I ask what about it don't you like? I was 75% sure I was going to do it as my next mod, but all opinions welcome. I don't want to regret it, especially since I have yet to hear a 335i muff delete in person.
    I really don't know how to elaborate on it other than stating that it sounds horrible. Even with stock downpipes it's not a good choice. I guess i would describe the exhaust note as sloppy. Of course, this is all subjective.

    If you want things a little louder, go with catless downpipes and pull the plug for the muffler flapper.
    Click here to enlarge

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    Sound quality subjective. It will be loud but if you decide to do it don't try and re-use stock tips. I would recommend dimisa tips?http://www.dimisatips.com/
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    1 out of 1 members liked this post. Reputation: Yes | No
    Been running a muffler delete for almost 3 years now, catless for a year
    Pros: It's loud, cheap, and sounds as good if not better than half of the mufflers on the market
    Cons: It drones like crazy, even with catted dp's (Helmholtz chamber will fix this), it rasp's at high rpms (resonators will take care of that).
    Click here to enlarge
    | 2010 335i | BurgerTuning | Raceland | CX Racing | Cyba | Tein | Escort | Varrstoen | Evolution Racewerks | Amuse Trunk | M-Sport Rear | M3 Front | Lux |


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    muffler delete with all cats still on the car sounds good but drones. when you put catless DP on the car and have a muffler delete it gets very raspy and still drones. DO NOT DELETE ALL CATS AND DO A MUFFLER DELETE. SOUNDS ABSOLUTELY AWEFUL. My buddy had catless DP, still had middle cats and had a muffler delete. He picked up an eisenhauss catless midpipe very cheap so had that put on. The car sounded aweful. He put the stock mufflers back on with all the cats gone and it sounded pretty good.

    i say try out the muffler delete if you're keeping all your cats. i like the way it sounds. you'll need to get aftermarket tips though.
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


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    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    muffler delete with all cats still on the car sounds good but drones. when you put catless DP on the car and have a muffler delete it gets very raspy and still drones. DO NOT DELETE ALL CATS AND DO A MUFFLER DELETE. SOUNDS ABSOLUTELY AWEFUL. My buddy had catless DP, still had middle cats and had a muffler delete. He picked up an eisenhauss catless midpipe very cheap so had that put on. The car sounded aweful. He put the stock mufflers back on with all the cats gone and it sounded pretty good.

    i say try out the muffler delete if you're keeping all your cats. i like the way it sounds. you'll need to get aftermarket tips though.
    I definitely plan on keeping all my cats since I live in california, and I heard it will be impossible to pass emissions without cats.

    That brings me to my second point, do I HAVE to use aftermarket tips? Why can't I use the stock tips?

    I was looking at the cyba 3.7" TI tips with the blue finish.
    2010 335i Coupe- Monaco Blue Metallic

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  12. #12
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    Click here to enlarge Originally Posted by 1chanc3 Click here to enlarge
    I definitely plan on keeping all my cats since I live in california, and I heard it will be impossible to pass emissions without cats.

    That brings me to my second point, do I HAVE to use aftermarket tips? Why can't I use the stock tips?

    I was looking at the cyba 3.7" TI tips with the blue finish.
    It's a $#@! to cut off the stock tips and then weld them back on. Easier to just weld new tips onto the new pipe that will replace your muffler. Plus, it'll look a lot better.

    That being said, I, like most of the above posters, would advise against a muffler delete. To get it to not sound like a tin fart can, you will end up spending a lot more than you originally estimated. You already own a BMW, why not just save 1-2 hundred a month for 6 months and get a real exhaust?
    2010 e92 M3 Jet Black | DCT | ESS Tuned | Akrapovic Slip-on | Challenge X-pipe | AFE Intake | 18" Volk TE37SL | KW V3 Coilovers | RPI Scoops | Under Drive Pulley

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    Click here to enlarge Originally Posted by nafoo Click here to enlarge
    It's a $#@! to cut off the stock tips and then weld them back on. Easier to just weld new tips onto the new pipe that will replace your muffler. Plus, it'll look a lot better.

    That being said, I, like most of the above posters, would advise against a muffler delete. To get it to not sound like a tin fart can, you will end up spending a lot more than you originally estimated. You already own a BMW, why not just save 1-2 hundred a month for 6 months and get a real exhaust?
    Appreciate the input! I definitely want to hear the muff delete in person before taking the dive. There's just so many exhaust out there, and I hate the idea to pay $1-2k for just sound haha. I will reconsider muff delete until then.
    2010 335i Coupe- Monaco Blue Metallic

    CF performance spoiler // VMR V701 18x8.5 (front) 18x9.5 (rear)

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    1 out of 1 members liked this post. Reputation: Yes | No
    Click here to enlarge Originally Posted by tofu Click here to enlarge
    sounds like crap

    don't bother
    Sorry, but I highly disagree.

    For the money it is great and sounds yards better than more than half of the aftermarket exhaust out there. I ran it on my car for a while and I loved it. Drone is there, yes, but so does every exhaust out there it's the nature of the beast.

    To the OP, here are videos of my car with a muffler delete with stock downpipes and catless downpipes. I loved the way it sounded with catless downpipes.


    Click here to enlarge

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    ^Vids don't do it justice I'm sure it sounds 100x better in person
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    Still sounds like crap IMO

    Id rather do Performance Exhaust or Vanguard

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    I know it's not an E92 but in my 135i I have no cats, twin 2.5" pipes with maganflow resonators and no muffler. It can make some weird noises, (eg. when TC cuts in) but I think it sounds good. It doesn't drone, it's not too loud when going slow and sounds good when you're on it.
    This is from a mic taped to the back bumper.

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    Sounds like the mic is getting overloaded at WOT. Sounds wonderful otherwise.

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    dam it seems like the community is 50-50 in terms of whether it sounds good or not. Now I'm really torn. Click here to enlarge
    2010 335i Coupe- Monaco Blue Metallic

    CF performance spoiler // VMR V701 18x8.5 (front) 18x9.5 (rear)

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    Click here to enlarge Originally Posted by 1chanc3 Click here to enlarge
    dam it seems like the community is 50-50 in terms of whether it sounds good or not. Now I'm really torn. Click here to enlarge
    It really depends on what type of sound you prefer. Do you like refined or unrefined? How sensitive are you to drone?

    For me personally, I've heard muffler deletes and they've always sounded like $#@!. I had a Vanguard and loved how it was more refined, but still pretty raw. I now run HKS and it's definitely a lot more refined and seems to match the car, IMO.

    You're just going to have to find someone local and listen for yourself or just dive in and take a risk.
    2010 e92 M3 Jet Black | DCT | ESS Tuned | Akrapovic Slip-on | Challenge X-pipe | AFE Intake | 18" Volk TE37SL | KW V3 Coilovers | RPI Scoops | Under Drive Pulley

    2007 e92 Mont. Blue 335i | 6MT | COBB Tuned | Quaife 3.46 LSD | Helix FMIC | AA DPs | HKS Exhaust | DCI | Stett CP w/ Forged DVs | KWv2 Coilovers | UUC Sway Bars & SSK | HPF Stg 2 Clutch | HFS-4 | M3 Suspension Bits | DEFIVfab Diff Lockdown Kit | Stoptech Trophy BBK

  21. #21
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    Cut the muffler and throw on some dimisa tips. Its not that expensive to reverse if you don't like it, and you ccould sell it and get most of your money back.
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    Click here to enlarge Originally Posted by Sered Click here to enlarge
    Sounds like the mic is getting overloaded at WOT. Sounds wonderful otherwise.
    Thanks! Yeah I need to tape it further away from the exhaust, it is pretty loud at WOT.

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