1320 Performance T304 Stainless Catback Exhaust System for 03-08 Nissan 350Z & 03-07 Infiniti G35 Coupe

Upgrade your 2003-2008 Nissan 350Z Z33 with the 1320 Performance Stainless Steel Exhaust System, a full catback designed for enthusiasts who demand aggressive sound, improved flow, and premium build quality, and this same system is also a direct fit for the 2003-2007 Infiniti G35 coupe thanks to the shared VQ35DE platform and identical exhaust routing, giving both VQ owners a bolt-on solution with no cutting or welding required. Constructed from T304 stainless steel throughout including the mandrel-bent 2.5 inch piping, resonated Y-pipe, and dual mufflers, it resists corrosion and heat discoloration far better than standard 409 steel systems while maintaining structural integrity through track days and daily driving in all weather conditions. The 1320 Performance system features a true dual design with an X-pipe or H-pipe crossover depending on variant to balance exhaust pulses from both cylinder banks, reducing drone inside the cabin while sharpening throttle response and delivering a deep, exotic tone at idle that builds into a clean, race-inspired rasp at high RPM without excessive raspiness or harshness common on cheaper catbacks. Dyno proven gains typically range from 12 to 18 horsepower and 10 to 15 lb-ft of torque on stock VQ35DE motors, with even better results when paired with intakes, test pipes, and a tune, thanks to the smooth mandrel bends that eliminate restrictive crush points found in factory piping. It includes 4.5 inch polished or burnt stainless slash-cut tips that fill the rear bumper cutouts perfectly on both the 350Z and G35 coupe for an aggressive, premium aesthetic, and all necessary gaskets, grade-8 hardware, and hangers are included for a complete installation using factory hanger locations. The resonated midsection helps control highway drone while keeping volume civil at cruising speeds, yet it opens up with a motorsport bark under wide open throttle that makes the VQ’s signature sound stand out without triggering noise complaints for most daily drivers. Designed and TIG welded for precise fitment, the 1320 Performance exhaust tucks up high for maximum ground clearance on lowered cars, clears all factory bracing and suspension components, and works with stock catalytic converters or aftermarket test pipes and high-flow cats, making it a versatile foundation for N/A or forced induction builds on your Z33 or G35.