Quote Originally Posted by banarcus View Post
Does sound good. Mine is nearly the same but I kept it at 2.5 all the way through and had a resonator put on to kill any drone. Extractors make another positive difference on top of that again.
Yeah, I would of thought 2.5" is better sizing for a 3.9/4.0 V8, with madrell bends and good flowing cans it should be free enough for good top end power, without having a crud noise and ruining down low torque.