I hated the DNA motoring cat back that my 370z came with, so I finally picked up a nice new setup. Isr long tube headers and Torqen Zorst catback exhaust. The header install is a lot harder than just test pipes, I would only recommend it if you’re looking to get the most power, not just sound. The exhaust was an easy install aside from tip fitment. It has almost no drone while cruising along but then it screams loud when you hit the gas! And I feel a big difference in performance with the new setup. Let me know if you have any questions. #370z #vq37vhr #torqen #isr #exhaust #zociety