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Thread: Thoughts on back box delete?

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  1. #22
    BMWHaus Contributor
    Join Date
    Jul 2013
    Posts
    279

    Re: Thoughts on back box delete?

    I removed the backbox and put 2 50mm stainless steel pipes instead. Left cat and resonator in . Its unfuckingbelieveably loud ! And it drones at 60mph
    Not advisable to do
    Then again watching people jump when it backfires is funny
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