[Pman1961]

Okay, I've created similar threads on this topic in the past and I have decided to have my existing sidepipes modified by Eric at Performance Engineering. I know there are some great Stainless Steel sidepipe fabricators out there but it is hard for me to justifying spending twice as much for same performance increase and I plan on sticking with the ceramic coating finish. My new motor sitting on the floor of the garage will be going in the car within the next few weeks. The motor (408w) dynoed at 555 hp @ 5900 and 555 ft lbs torque peak @ 4500. I do not have a strong liking to the sound of the Superformance exhaust. Yes...I want louder exhaust such as no packing or muffler only. Question with all the theories and science of exhaust is the 3" ID muffler the best choice for my application or would it be wiser to go 2 1/2" and if so why? Thanks in advance!!