Does anyone know how well the Pypes shorty headers work with the Pypes true dual exhaust system and m80 mufflers? Any notice in power? More than longtubes? And if I do get them would it be better if I got hi flow cats to go with them or it doesn't really matter?
Power difference is going to be minimal, and less than long tubes at that. If you're looking for the most power out of your exhaust, then you'll have to go long tubes and some type of off-road mid pipe