Invidia Gemini Cat-Back Exhaust System – 2009–2021 Nissan 370Z (Z34) | True Dual 60mm | Single-Layer Titanium Tips | VQ37VHR

Upgrade the exhaust flow, sound, and aesthetics of your 2009–2021 Nissan 370Z with the Invidia Gemini cat-back exhaust — a true dual 60mm stainless steel cat-back system with single-layer titanium tips engineered specifically for the Z34 370Z and its VQ37VHR V6. A direct bolt-on replacement for the factory cat-back, the Gemini delivers improved exhaust flow, a more aggressive and characterful exhaust note, and a significant visual upgrade over the factory tips — without requiring cutting, welding, or modifications.

Key Features

• True Dual 60mm Piping – Improved Flow Over Factory: True dual 60mm (2.36") mandrel-bent piping throughout — larger diameter than the factory system, reducing back pressure and improving exhaust gas flow across the RPM range. Mandrel bending maintains consistent internal diameter through each bend, eliminating the restriction that occurs with crush-bent piping. The true dual configuration preserves the VQ37VHR’s dual-bank exhaust character from the factory Y-pipe back
• SUS304 Stainless Steel Construction: All piping is constructed from SUS304 stainless steel — a high-grade austenitic stainless that provides excellent corrosion resistance, heat tolerance, and long-term durability. SUS304 maintains its appearance and structural integrity under the thermal cycling of regular performance driving
• Single-Layer Titanium Tips – 101mm: 101mm (4") single-layer titanium exhaust tips — Invidia’s signature finish for the Gemini line. Titanium tips develop a natural heat-blued patina over time for a premium, race-inspired appearance. Single-layer construction (vs double-wall) keeps the tip profile clean and lightweight. Fills the 370Z rear bumper cutouts for a purposeful, finished look
• Aggressive VQ37VHR Exhaust Note: The Gemini delivers a more aggressive, deeper exhaust tone that enhances the VQ37VHR’s natural character — noticeably louder than stock at all RPM ranges with a refined tone during cruising and a more aggressive note under acceleration and at WOT. Suitable for street and track use
• Direct Bolt-On – 2009–2021 Nissan 370Z Z34: Engineered as a direct-fit replacement for the factory cat-back on the 2009–2021 Nissan 370Z (Z34, all models including Nismo). Uses factory mounting points and includes all necessary gaskets and hardware. No cutting, welding, or modifications required. Verify your specific model year before ordering
• Invidia Quality: Manufactured by Invidia — a respected Japanese exhaust manufacturer known for high-quality stainless steel exhaust systems for JDM and performance applications worldwide

Specifications

• System Type: Cat-Back
• Pipe Diameter: 60mm (2.36") True Dual
• Material: SUS304 Stainless Steel
• Construction: Mandrel-Bent
• Tips: Single-Layer Titanium, 101mm (4")
• Fitment: 2009–2021 Nissan 370Z Z34 (VQ37VHR, all models)
• Part Number: HS09N7ZGIT
• Barcode: HS09N7ZGIT

Note: Designed for use with factory catalytic converters — verify compatibility if running aftermarket test pipes or high-flow cats. Professional installation recommended. Apply anti-seize to all fasteners during installation. Check for exhaust leaks after the first heat cycle. Titanium tips will develop a heat-blued patina over time — this is a natural characteristic of titanium, not a defect. Check local noise and emissions regulations before purchasing — aftermarket exhausts may not be street-legal in all jurisdictions.