get the magnaflow!!!! thats what i have on mine, and it sounds nice. i have 2" pipping onmine from the cat back. it was all custome done for $250 at a local shop. dont worry about getting manderal bent. if the guy does it right you wont be able to tell the diff. most people cant on mine. just get the universal muffler! the TI is a little "ricey" the performance iss all the same as well. good luck