Would like some facts regarding catback exhaust
I had a catback on my last car with larger diameter stainless steel pipes and a high-flow muffler that I bought to replace the factory catback for a little more power and better sound. I've always assumed that a true dual exhaust (2 separate pipes coming off each set of headers terminating with 2 separate high-flow mufflers had less power-loss than a catback (= "more" power), but the stuff I've read lately seems to suggest otherwise.
Do you actually get more power with a good catback as opposed to a good dual exhaust? If so, is that because there are 2 mufflers versus one, and furthermore if true, why would the Camaro team design the factory exhaust as dual (dual muffler & cats)?
Last edited by weland; 03-17-2009 at 01:50 PM.