Quote:
Originally Posted by kga10734
Until a company comes up with some drastic hp and torque improvements with a cat back, there is no need for one. As stated somewhere around here, the gains would be a lot more if we were going from a single exhaust to a dual exhaust. Since it already has a dual system, the gains won't be as impressive.
I can only speak for myself but I think the general consensus is, we are changing the stock exhaust out to improve the sound coming out the ass end of this car.
|
Actually... I'm not sure about the gains of a single vs dual... the 2005-2009 (not sure about the 2010) 4.0L V6 Mustang is 2.25 down pipes to a Y pipe and then 2.5 back to single muffler... Biggest gain was just replacing the muffler. That was good for about 10RWHP (peak!). Number of guys then switched to a dual setup and only seen like 2 or 3 RWHP gain, if that... So there really was not big gain by converting to duals... and that's with a larger 4.0L motor...