magnaflow cat back cheap and you can install it yourself in an hour, i paid 425.00 for mine shipped and it sounds amazing. look it up on youtube under username tylerxfire. Thats the only way your gonna get a real nice sound and not just noise. or just change the muffler if you wanna go the cheaper route to a different more aggressive one, the magnaflow is also sold in just a muffler and not a cat back. Imo go with the cat back you will be happy and its a good price. chuck466 is the user on here i went through for the best deal. Its just from rear cats back and all you would need, great sound little more power