I have a 2006 enthusiast with the topspeed exhaust. I want to eliminate some cabin drone and recently purchased the OEM 07 nismo exhaust. I also bought the 07 OEM nismo headers, the headers should fit no problem right?

 

what catalytic converter/high flow cats/test pipes are you running? planning to run? Everything should fit fine…

a solution if things don't fit quite right is to have the cats/hfc/tp cut and re-welded to the proper fitting angle/length…not the end of the world.