Header Question
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Teching In
Joined: Sep 2004
Posts: 31
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From: Homer Glen IL
Header Question Well my current setup is stock manifolds/stock-y pipe/and slp loudmouth and in the spring i plan on gettin qtp 1 3/4 velocity headers, but if i get a off road y it will be annoingly loud and raspy, now my question is wat kind of setup would gain more hp, like if i got a catted y pipe or and off road y-pipe............i kno the backpressure should help but i was wondering if ne one with that kind of setup knew...
Thanks,
Tom
Thanks,
Tom
yeah you dont want backpressure it isnt a rice burner, thats why they make 3 inch Y pipes and long tube headers so the exhaust can escape quicker therefore more power with less stress on the engine.
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
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From: Miami
Hi Flow Catted Y-pipe won't set you back too much in performance. The QTP catted Y is sweet but expensive. Either go with an ORY and put a borla xr1 in place of the LM resonator or go with a catted Y.
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From: Tree-Hugging, Bug eating CALI'
I have QTPs and their cat' d y-pipe, and the rasp is nearly completely gone, even with the QTEC open. You can hear it a little, but, the cat' s talk care of probably 85% of it. I think with cat' s it sounds bad@$$, and with a cam, wicked. It' s expensive, and you may have to give up a litttle clearance, but, most everyone recommends the use of the Flowmaster merge collector.
If your state cares about emmissions (which it probably doesn't) go with cats - you won't loose much performance and it'll take away most of the rasp... but if I were you, I'd just get a different catback like Hooker or Magnaflow... they both sound great and flow very well. If you've got the $$$ go Borla or GMMG 
