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Thread: E46 M3 Borla exhaust to ZHP retrofit

  1. #1
    Join Date
    Apr 2021
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    North New Jersey
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    E46 M3 Borla exhaust to ZHP retrofit

    Hey, guys so I haven't been too active on the forum lately because of school and work but I've been saving up and I just pulled the trigger on a Borla exhaust from a buddy. He had it on his M3 for less than 100 miles and decided it really wasn't for him so I took it off his hands. I called some exhaust guys near me and got an estimate for the custom retrofit so I'm pretty excited and ready to go. My only question is do you guys think I would have to just get a new rear diffuser or would I need a new rear bumper and diffuser. Let me know what you guys think

  2. #2
    Join Date
    Dec 2019
    Location
    Raleigh, NC
    Posts
    622
    M3 exhausts won't fit on the ZHP due to the spare tire well.
    330i Base | Mysticblau | Slicktop | 6MT

  3. #3
    Join Date
    Apr 2021
    Location
    North New Jersey
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    12
    Quote Originally Posted by Galapolis View Post
    M3 exhausts won't fit on the ZHP due to the spare tire well.
    So essentially the exhaust wont fit unless I delete the spare wheel well? are there any objections to me doing this other than losing a place to put my spare? Ill probably still go with it just wondering if there are exact reasons why I shouldn't

  4. #4
    Join Date
    Jun 2012
    Location
    Socal
    Posts
    1,566
    Yeah just delete the spare tire well. You just need a new diffuser or you can cut your current one.

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