Hi everyone, I just picked up a 2014 mustang gt. I am interested in getting an axle back. I read a few reviews and watched tons of vids on youtube. But I still cant decide on whether I should get the roush axle backs or maybe something else. I want it to be pretty loud whenever I accelerate and especially at WOT. But I really don't want to have too much drone in the cabin. I also like the exhaust to have some deceleration pops and burbles. My friend has the gt500 axle backs and they sound relatively loud. how much louder/deeper are the roush than the gt500's?