Introducing the Flowmaster FlowFX® Cat-back exhaust system for 2003-2008 Nissan 350Z Coupes and Convertibles with the 3.5L engine. This dual 2.50 in. system is perfect for the person looking for a moderate aggressive exterior and interior sound level with all of the performance benefits that you would expect from Flowmaster®. Features include all 409S stainless steel mandrel-bent tubing, our exclusive race proven Scavenger Series® X-pipe for added power with a unique exhaust note flowing into a FlowFX straight-through performance crossflow muffler for maximum power and a deep aggressive sound. The system is then finished off with dual 4.00 in. Carbon fiber wrapped 304 stainless steel tips showing off the Flowmaster® logo. Designed for easy installation, this system includes all necessary parts, hardware and detailed instructions.