I can speak for the Magnaflow non-res. Sounds great at idle, and perfect through the RPM range. It is a great sounding exhaust. Now borla muffler is louder than that, and the flowmaster is even louder. I think the magnaflow non-res is as lud as you want to be, and as I said, it sounds great. I have NEVER experienced any rasp with my setup (while it was all stock and trubendz magnaflow non res). If you want, you can order the magnaflow resonated system, and if it's too mellow, I will trade your rear pipes which have the resonators on them, for mine with no resonators and I'll throw in some cash as well to make it fair.
But Magnaflow non-res w/ stock everything else(exhaust-wise) is great.
