2.5" exhaust system

Discussion in 'Small Block Tech' started by Gold GS, Nov 7, 2020.

  1. Gold GS

    Gold GS Well-Known Member

    Hello Everyone, I have a 350 in my GS that is about 400 hp 400 tq. I was thinking of using long tube headers with a 2.5" exhaust system from TA Performance. My question is will the 2.5" be too big for the horse power I'll be running and is the T.A. exhaust system any good?
     
  2. Stevem

    Stevem Well-Known Member

    That's as near perfect size as you can get for your motor in terms of good low speed Torque and not killing off top end power, the key here is if the collector is 3 inch you want as long a neck down section as you can make to get that 1/2" reduction in tube size.

    This chart may help you feel good about your header pick.
     

    Attached Files:

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  3. alec296

    alec296 i need another buick

    2.5 exhaust with x pipe should be enough exhaust for your engine. I run a 2.5 with manifolds, magnaflo x system. Probably only 325 hp.
     
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  4. Gold GS

    Gold GS Well-Known Member

    Thank you very much Stevem and alec296, I'll go ahead and buy the 2.5" system.
     
  5. Mark Demko

    Mark Demko Well-Known Member

    Your on the right track, TA headers and their 2.5" exhaust:cool:
     
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  6. Gold GS

    Gold GS Well-Known Member

    Thanks Mark, the Gardner exhaust is too expensive for me. Hopefully the TA exhaust will work good.
     
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  7. Mark Demko

    Mark Demko Well-Known Member

    I have the TA headers and exhaust on mine, no issues at all
     
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