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Thread: Catback Exhaust System

  1. #21
    Join Date
    Aug 2009
    Location
    hunter valley
    Posts
    6,403

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    For those with Gen2 good gains are had from just adding Magnaflow muffler. That said i have a CPe DP so i flow more through it..

    Those with Gen1's just do DP and remove muffler or res, gen1 standard CB flow well anyways. UNLESS you have BT gt3071 or bigger than 3' will help you

  2. #22
    Join Date
    Dec 2008
    Location
    Sydney
    Age
    49
    Posts
    1,834

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    @levitize the cat back with the magnaflow was around the 550 mark, this also removes the front res from the system as well, you can just do a muffler swap to replace the large stock chamber muffler, the factory 2.5" plumbing is more than adequate in terms of flow.

    @Seba no need to tune after a DP install, there are benfits from tuning after the install, but its not critcal
    Nearly all men can stand adversity. But if you want to test a man's character - give him power.
    Abraham Lincoln

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