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Thread: 535i experimental exhaust

  1. #1
    Join Date
    Jul 2006
    Location
    illinois, USA
    Posts
    79

    Default 535i experimental exhaust

    hello, if you've seen my pervious posts, i've been experiementing with exhaust, i figured i'd share my results. when i bought my car it had the b&b tri-flow catback exhaust. it wasn't loud enough for my taste, so i cut out the cat. that created a louder tone, but not throaty. so i decided to go 2 1/4" from the downpipes to a Y pipe about the center of the vehicle to 2.5" all the way back to a flowmaster 40 series. now it sounds MEAN at an idle, but from 1800rpm to 3200 rpm it's extremly raspy and sounds like garbage! i'm giong to have a resonator put in to try and calm it down. i'll repost when that's in. if i still can't get a better tone, i'm going to get a borla muffler.

  2. #2
    Join Date
    Jan 2006
    Location
    Connecticut, USA
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    Default

    I would try out a stock resonator, as I've heard that basically cures any vibration/raspyness. And definitely I'd like to hear a sound clip or video if you have any way of making one... I was thinking of trying flowmaster on my own 535

    -JK
    1990 Islandgrun 535iM Sedan

    3k oil changes | Euro lights + trim | Eibach/Bilstein | EAT Chip

  3. #3
    Join Date
    Mar 2005
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    Hockinson, Washington
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    2,499

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    I have been thinking of a couple flowmasters myself.
    Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
    southwest WA

  4. #4
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    I wasn't aware that Borla had something for e34? Or are you doing custom work?
    :: HIDCanada.com | Illuminating Your World


  5. #5
    Join Date
    Mar 2005
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    Hockinson, Washington
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    Default

    Quote Originally Posted by Qube
    I wasn't aware that Borla had something for e34? Or are you doing custom work?
    Read his post all the way through, and see if you can still ask that second quesiton with a straight face.
    Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
    southwest WA

  6. #6
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    Jul 2006
    Location
    illinois, USA
    Posts
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    yeah i figured a resonator would take care of it. my friend had a dodge neon srt-4 with dual straight pipes with borla xr-1 bullet mufflers ($175 per muffler OUCH) but for a 4 cyl it had an extremely throaty sound. i'm wondering if i should try an xr-1 muffler first, then add a resonator if necessary. i'll try to get a sound clip. more than likely a video with sound.

  7. #7
    Join Date
    Dec 2003
    Location
    baton rouge, loserana
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    when i got my 535 it had single pipe with a flowbastard where the cat should of been and a glass pack where the muffler should of been, the only time it didn't sound like ass was at idle and maybe when id rap the throttle from under the hood, it wasn't really raspy it just sounded like **** and was ****ing loud, ****ing loud works on a small car sometimes but i find is kinda dumb on a good sized car. i went with a 750il catback that i modded to fit a stock cat



    2.5" pipes, those cool square tips and a nice deep sound

    Quote Originally Posted by ILoveMPower
    I was thinking of trying flowmaster on my own 535

    -JK
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  8. #8
    Join Date
    Mar 2005
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    Hockinson, Washington
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    What about keeping everything stock except for the rear muffler, and replacing that with one flowmaster for each side?
    Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
    southwest WA

  9. #9
    Join Date
    Jul 2006
    Location
    illinois, USA
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    i thought about it because my friend was selling two flowmasters for $20 each. the problem is there is no room. i suppose it MIGHT be possible to cram both of them there the stock muffler goes, but i doubt it. something more practical would be to go a dual in single out flowmaster. my suggestion would be to use a dual in single out 30 series flowmaster with a nice tip. with the stock resonators in there it'll take out the rasp, and with a cat it won't be too loud. but i wouldn't use a 40 series flowmaster, possibly 30 or 50 series.

  10. #10
    Join Date
    Jul 2006
    Location
    illinois, USA
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    i have a friend that has a hooker muffler brand new in the box he's asking $40 for. it's a dual in single out. i don't know how it would sound. i think it runs about $120 new.

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