Originally Posted by WUKILLABEEZ78

Basic bolt ons such as an intake, headers (not aware of any for the VQ 3.5 HR) and exhaust would be worth it. Combined together they increase performance and can increase fuel economy as well. I'd consider those three mods as they become available for the 370Z. I'm not sure I'd go further than that though, I doubt I'd get really hardcore and start messing with suspension, brakes, advancing timing, etc... etc...