I felt the same way, i was on you tube trying to find the perfect sound for me. Listend to SLP, Magnaflow, Borla, Flowmaster, Spin Tech, You name it i listend to a clip, I ended up settling on the Original 40 Flowmasters. Love that sound, deep roar, it was close for me between Spin Tech and Flowmaster. You also need to take into consideration what else your doing to the exhaust. No cats, stock cats, High Flows? H or X pipe, pro-chamber, they all determine what kind of sound your looking for. Weigh all the options before you cut and weld.