Originally Posted by forza370z

That sounds pretty good. Thanks for sharing. I noticed you mentioned HKS is one of your option from the other thread. I have the HKS with the stock cats. I love the tone. Very unique and exotic. But it's not any louder then the Nismo exhaust. Just a heads up... Not sure how it sounds with the HFCs or test pipes. Maybe you can keep me updated if you end up with the hi-power? I heard it's gonna be loud.