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High Flow Cat/Test Pipe

Discussion in 'General Tech and Maintenance' started by bunson2001, May 19, 2005.

  1. bunson2001

    bunson2001 Member

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    I have a B18c1 and was wondering if a high flow cat/ test pipe would really make that much difference over the stock Cat and if so how much louder are they? Any replies appreciated.

    Thanks

    I've had the the head mildly P&P'd multi angle valve job etc. and a CAI
     
  2. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    You won't see much of a gain, especially on a near-stock or mild setup. On a related note, you won't see much of a difference between a high-flow cat and a test pipe.

    I chose a turboback exhaust that had a high-flow cat and a resonator to cut down on noise and so that I could still pass emissions without swapping the stock exhaust back on. IMO, catless exhausts are way too loud, and usually stink pretty bad (this can suck in the summer with your windows down).

    If you keep your current setup, keep the stock cat and spend the money elsewhere. You won't notice any gain from it.
     
  3. K2e2vin

    K2e2vin Senior Member

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    :werd: on the too loud and stink. i have full manderl bent exhaust with no cat, i have to shift early accelerate very slow so i dont attract the cops(btw my car looks beat up; no gloss, slow, etc. so i dont like the added attention).
     
  4. GSRCRXsi

    GSRCRXsi Super Moderator Moderator VIP

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    mine really wasnt that much louder. but i used one of those ebay obx ones. its not just a pipe, its straight though but it has some baffling on the inside so that might help with noise.
     
  5. bunson2001

    bunson2001 Member

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