Originally Posted by 6spd

the s-tune has larger piping throughout and it is just a tad bit deeper than the stock nismo exhaust. If I ws forced to give you my opinion, i'd say go for a used stock nismo system. Its cheaper and provides all the same results. I got my s-tune for a steal, which is why I have one, but if i didnt get it as cheap as i did, i would have gotten the stock nismo. Other than looking pretty, the s-tune isnt worth it.