2.5 Inch Valved Muffler Exhaust Cutout with Muffler Cat Back Exhaust System Kit

It depends. The resonator actually soaks up a lot of sound believe it or not. If you want to be stupid loud, i suggest a true straight pipe from the manifold unless you live in a state where theres inspections. And if you want a bit of both, quiet and loud, I suggest this. This is what i have on my car and it helps a ton especially if you works 3rds and have neighbors. But honestly, its up to your discretion depending on what you want to do and how you want your car to be