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  1. #1
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    Challenge Race X-pipe sound clip + OE Tuning dyno

    I got this challenge race x-pipe on, so if you wonder what it sounds with the stock mufflers, here it is:



    I personally like it, sounds good, definitely better than stock x-pipes. An aftermarket muffler will make it sound even better (throatier), but it's absolutely not obnoxiously loud or ricey.

    I also got it dyno tuned by Jeremy @ OE tuning. BTW I highly recommend OE Tuning, they provide excellent customer service, great product, and their tune gives nice gains, + I got my car dynoed.

    Baseline (no tune, x-pipes on) was HP 327.1 TQ 243.8 on a dyno dynamics, which reads so much lower than DJ dynos, but the point is that with just the tune we gained an additional 15-19 HP and 12-14 TQ and peaked 346.2/257.2.

    I'm satisfied with these numbers and gains, I think they're pretty solid for just a single bolt-on + tune.

    Unfortunately I didn't dyno the car bone stock, which could have been another good comparison baseline.
    Attachment 14027
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    Last edited by Ocbimmer; 01-24-2012 at 04:46 AM.
    current: '12 E92 M3

    past: '09 335i E92
    best 1/4 ET: 12.47 on street tires
    best 1/4 trap speed: 115mph

  2. #2
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    very nice, is it resonated at all? how about drone? my biggest fear isnt HP, its freaking drone..

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    i have zero tolerance to anything even remotely resembling exhaust drone
    Click here to enlarge

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    It's resonated, and there is no drone.
    current: '12 E92 M3

    past: '09 335i E92
    best 1/4 ET: 12.47 on street tires
    best 1/4 trap speed: 115mph

  5. #5
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    can you try and get some video inside? not that i dont believe you, but just in case your and my definitions and tolerances are different Click here to enlarge

  6. #6
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    No baseline before the X-pipe?

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    Click here to enlarge Originally Posted by LostMarine Click here to enlarge
    can you try and get some video inside? not that i dont believe you, but just in case your and my definitions and tolerances are different Click here to enlarge
    Here's a sound clip. It's pretty quiet inside.

    File name: x-pipe.m4a File size: 122.22 KB
    current: '12 E92 M3

    past: '09 335i E92
    best 1/4 ET: 12.47 on street tires
    best 1/4 trap speed: 115mph

  8. #8
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    No baseline before the X-pipe?
    no baseline, x-pipe was already on when Jeremy tuned my car.
    current: '12 E92 M3

    past: '09 335i E92
    best 1/4 ET: 12.47 on street tires
    best 1/4 trap speed: 115mph

  9. #9
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    Click here to enlarge Originally Posted by Ocbimmer Click here to enlarge
    Here's a sound clip. It's pretty quiet inside.

    File name: x-pipe.m4a File size: 122.22 KB
    Click here to enlarge

    no luck

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    damn it. they all got scared after megaupload got busted. I have no clue how to share this file then...
    current: '12 E92 M3

    past: '09 335i E92
    best 1/4 ET: 12.47 on street tires
    best 1/4 trap speed: 115mph

  11. #11
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    Click here to enlarge Originally Posted by Ocbimmer Click here to enlarge
    damn it. they all got scared after megaupload got busted. I have no clue how to share this file then...
    you cant post it to youtube?
    Click here to enlarge

  12. #12
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    1 out of 1 members liked this post. Reputation: Yes | No
    It was just an audio clip, so I added a pic and converted it to a video, so it could be uploaded to youtube.

    current: '12 E92 M3

    past: '09 335i E92
    best 1/4 ET: 12.47 on street tires
    best 1/4 trap speed: 115mph

  13. #13
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    pretty quiet inside like you said, will you be getting a different muffler later on?
    Click here to enlarge

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    Yes, I think I'm gonna get a muffler later on. Not sure when.
    current: '12 E92 M3

    past: '09 335i E92
    best 1/4 ET: 12.47 on street tires
    best 1/4 trap speed: 115mph

  15. #15
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    Click here to enlarge Originally Posted by Ocbimmer Click here to enlarge
    It was just an audio clip, so I added a pic and converted it to a video, so it could be uploaded to youtube.

    http://www.youtube.com/watch?v=bDQaXA1UBZA
    Exactly how you do it.

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