Invidia HS09N7ZGD1GS N1 GT Dual Cat-Back Exhaust for 2009-2020 Nissan 370Z SS

Vehicle Fitment

• 2009-2020 Nissan 370Z (Z34 | VQ37VHR 3.7L V6 | Coupe & Roadster | All trims including Base, Sport, Sport Tech, Touring, NISMO)

Fitment Notes

• Compatible with all Z34-generation Nissan 370Z variants across the full production run - the Z34 chassis had no exhaust routing changes through its production life, making this a universal fit for all 2009-2020 370Z Coupe and Roadster models.
• This is a cat-back exhaust system - it attaches at the factory catalytic converter outlet and replaces the midpipe, mufflers, and tips. The factory catalytic converters are retained for a fully emissions-legal installation.
• Does not fit the 2023+ Nissan Z (RZ34 chassis), which uses a different exhaust configuration.
• Connects directly to the factory catalytic converter flanges - no modification required.
• For polished stainless steel tips, see Invidia HS09N7ZGD1GS (this part). For titanium burnt tips on the same system, see the titanium tip variant.

Features

• N1 GT cannon-style mufflers are specifically tuned for the Nissan VQ37VHR's firing order and exhaust pulse characteristics, delivering a deep, aggressive dual exhaust note that emphasizes the 370Z's naturally vocal V6 character without the rasp or drone associated with cheaper muffler designs
• True dual exhaust configuration with separate left and right mufflers provides the classic symmetrical dual-exit appearance while maximizing exhaust flow from both banks of the VQ37VHR independently
• 60mm mandrel-bent SUS304 stainless steel piping replaces the factory press-bent smaller-diameter system, reducing back pressure and improving exhaust gas scavenging from the cylinder heads for mid-to-top-end power gains
• 101mm (4") polished straight-cut stainless steel tips deliver a clean, race-inspired rear bumper presence - the straight-cut style complements the 370Z's angular rear bumper design and provides a visually larger exhaust presence than the stock tips
• Cannon-style muffler design is internally resonated for a balanced sound profile - aggressive under acceleration and at high RPM, but controlled during low-speed cruising and highway driving
• Bolts directly to the factory catalytic converter outlets for a straightforward installation - no cutting, welding, or modification required
• CNC machined flanges at all connection points ensure precise, leak-free sealing throughout the system
• New gaskets and all necessary hardware included for a complete installation
• Robot TIG welded construction provides consistent, high-strength welds throughout the system
• 304 stainless steel construction provides long-term corrosion resistance and thermal stability across the full RPM and temperature range of the VQ37VHR
• Covered by Invidia's 1-year manufacturer warranty against defects in material and workmanship

Specifications

• Part Number: HS09N7ZGD1GS
• Brand: Invidia
• Series: N1 GT
• System Type: Cat-Back
• Application: 2009-2020 Nissan 370Z Z34 (VQ37VHR 3.7L V6 | Coupe & Roadster)
• Piping Material: SUS304 Stainless Steel
• Piping Construction: Mandrel-Bent
• Main Piping Diameter: 60mm (2.36")
• Muffler Style: N1 Cannon (Resonated)
• Muffler Quantity: 2 (Dual)
• Exit Configuration: True Dual Rear Exit
• Tip Material: Stainless Steel
• Tip Finish: Polished
• Tip Shape: Straight-Cut Round
• Tip Diameter: 101mm (4")
• Tip Quantity: 2
• Flange Type: CNC Machined
• Hardware: New gaskets and hardware included
• Resonated: Yes
• Emissions: 50-State Legal (cat-back, uses factory catalytic converters)
• Warranty: 1-Year Manufacturer Warranty

Included Components

• 1x Left Mandrel-Bent 304 SS Midpipe Section
• 1x Right Mandrel-Bent 304 SS Midpipe Section
• 2x N1 Cannon-Style Resonated Mufflers
• 2x 101mm Polished Straight-Cut Stainless Steel Tips
• New Gaskets and Complete Hardware Kit
• Installation Instructions

Product Description

The Invidia HS09N7ZGD1GS is an N1 GT series cat-back exhaust system designed specifically for the 2009-2020 Nissan 370Z (Z34). It delivers a true dual exhaust configuration with 60mm mandrel-bent SUS304 stainless steel piping, paired twin N1 cannon-style resonated mufflers, and dual 101mm polished straight-cut stainless steel tips - providing the signature Invidia N1 sound character and meaningful back-pressure reduction against the factory exhaust system. As a cat-back system, it bolts directly to the factory catalytic converter flanges for a 50-state legal, direct bolt-on installation.

The N1 GT designation represents Invidia's tuned street performance series, positioned above their entry-level offerings and delivering the N1 cannon muffler's well-regarded sound character in a system optimized for the 370Z's VQ37VHR V6. The cannon-style mufflers are internally resonated to complement the VQ37's 3.7L naturally aspirated firing order - producing the deep, high-frequency V6 exhaust tone that the 370Z enthusiast community is known for, without the harshness or highway drone of simpler straight-through designs. The true dual configuration keeps the left and right exhaust banks separate through their own independent mufflers, maintaining the clean symmetrical dual-exit look that suits the 370Z's rear bumper design.

The 101mm straight-cut stainless steel tips provide a noticeably larger and more purposeful visual presence at the rear bumper than the factory tips, finishing the system with the clean, race-inspired aesthetic the N1 GT is designed for. SUS304 stainless steel construction ensures long-term durability and corrosion resistance. CNC machined flanges and Robot TIG welded joints throughout the system ensure leak-free fitment from installation day one. Covered by Invidia's 1-year manufacturer warranty against defects in material and workmanship.