If you want louder, remove the resonator and get an x-pipe. I have the ford racing sport mufflers which are basically rebranded borla s types with the ford logo on the tips, and of course they cost more than just regular borlas do. They are a little high pitched, the magnaflow competition series have a deeper tone if that's what you want. If I could do it over again, I would get the magnaflows, but after dropping 7 bills on just an axle back, I'm sticking with the ford racing sport mufflers.