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Turbo Exhaust Recommendations

Discussion in 'Forced Induction' started by boostdlude, Feb 27, 2003.

  1. boostdlude

    boostdlude Member

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    Looking for everyones thoughts on exhaust sizing for an H22 Turbo. Originally thinking 2.5 in. Anyone have a turbo lude with upgraded exhaust recommendations?
     
  2. BigJ

    BigJ I'm just about that action Boss. VIP

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    maybe like 3 in because turbo exhausts need the released back pressure because of the turbo being on the exhaust manifold. I would just have an exhaust shop build you a cat back system using a rear section or muffler of your choice.
     
  3. SolReaver

    SolReaver Senior Member

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    a general rule of thumb is if you are making 250 whp or less, 2.5 in will be fine, but 3 in would make more power. After 250 whp a 2.5 inch exhaust is a seroius bottleneck
     
  4. kyleirwin

    kyleirwin Retired OG

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    check out the thermal r&d 3" turbo cat-back system. or just do what slammed said and pick a turbo muffler and take it to your exhaust shop and have them build you a custom 3" mandrel bent system using your muffler of choice.
     
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