Im not sure but are chrome or polished UTR pipes actually slightly smaller in diamter than the stock pipe? I jus bought a pop charger and i read somewhere sayin the UTR pipes are smaller? Im not sure but can someone help me.

 

That pipe is only for looks. It doesn't do anything for performance. It only adds something if u put it in a g35.

 

not sure if the UTR pipe is smaller....I have it on mine and it fit in the same connections as the stock pipe though.