Invidia Gemini Cat-Back Exhaust – 2007+ Infiniti G37 Coupe (V36) | Single-Layer Titanium Tips | VQ37VHR

The Invidia Gemini Cat-Back Exhaust for the 2007+ Infiniti G37 Coupe (V36 chassis) is a complete cat-back exhaust system engineered for the VQ37VHR 3.7L naturally aspirated V6 — delivering improved exhaust flow, a more aggressive and characterful exhaust note, and the visual impact of single-layer titanium tips in a direct-fit system that replaces the factory cat-back without modification. Invidia is one of the most respected Japanese performance exhaust brands in the aftermarket — known for their Gemini series cat-back systems that have become a benchmark exhaust upgrade for a wide range of Japanese performance platforms. The VQ37VHR is one of the finest naturally aspirated V6 engines ever produced — a high-revving, 330 hp engine with a factory exhaust note that, while competent, leaves significant character and performance on the table. The Invidia Gemini unlocks that character — delivering the exhaust note and flow improvement that the VQ37VHR's high-revving nature deserves.

Key Features:

• Invidia Gemini cat-back system — Invidia's proven Gemini series cat-back design — a benchmark exhaust upgrade for the G37 Coupe platform with a strong following among V36 owners
• Single-layer titanium tips — single-layer titanium exhaust tips for a premium, lightweight appearance — titanium's distinctive heat-blued finish develops over time for a unique, evolving aesthetic
• Improved exhaust flow — less-restrictive piping and muffler design reduces exhaust backpressure — improved exhaust scavenging and flow for the VQ37VHR's high-revving naturally aspirated character
• Aggressive exhaust note — a more characterful, more aggressive exhaust note than the factory system — particularly pronounced at high RPM where the VQ37VHR's naturally aspirated character is most expressive
• Direct-fit — engineered for the 2007+ Infiniti G37 Coupe V36 — direct replacement for the factory cat-back using the factory mounting points and hangers
• Invidia quality — manufactured by Invidia, one of the most respected Japanese performance exhaust brands in the aftermarket

The VQ37VHR — Why This Engine Deserves a Better Exhaust:

The VQ37VHR 3.7L V6 is widely regarded as one of the finest naturally aspirated V6 engines ever produced — a VVEL variable valve event and lift system, 330 hp at 7,000 RPM, and a high-revving character that rewards drivers who use the full RPM range. The factory G37 Coupe exhaust system is engineered for NVH management and emissions compliance — it muffles the VQ37VHR's naturally expressive exhaust note and restricts exhaust flow in a way that limits the engine's ability to breathe freely at high RPM. The Invidia Gemini removes these restrictions — allowing the VQ37VHR to exhale more freely and express its naturally aspirated character through a more open, more characterful exhaust note that builds progressively with RPM. For G37 Coupe owners who want to hear what the VQ37VHR actually sounds like when it's not being suppressed by the factory exhaust, the Invidia Gemini is the correct upgrade.

Single-Layer Titanium Tips — What to Expect:

The Invidia Gemini's single-layer titanium tips are a premium finishing detail that distinguishes the Gemini from stainless-tipped alternatives. Titanium is lighter than stainless steel and develops a distinctive heat-blued finish — a gradient of gold, purple, and blue tones that appears as the tips are exposed to exhaust heat over time. The heat-blued finish is unique to each set of tips and evolves with use — a living aesthetic detail that stainless tips cannot replicate. Single-layer tips are lighter than double-layer alternatives and allow the heat-bluing process to develop more fully and more quickly.

Specifications:

• Brand: Invidia
• Part Number: invHS07IG7GIT
• Barcode: HS07IG7GIT
• Series: Gemini
• Tip Style: Single-layer titanium
• System Type: Cat-back (from catalytic converter back)
• Application: 2007+ Infiniti G37 Coupe — V36 chassis — VQ37VHR
• Weight: 79.3 lbs (shipping weight)

Fitment Information:

• 2007+ Infiniti G37 Coupe — V36 chassis — VQ37VHR 3.7L V6
• Direct replacement for the factory G37 Coupe cat-back — uses factory mounting points and hangers
• Note: Verify fitment for your specific G37 Coupe model year and variant before ordering. Coupe-specific fitment — not compatible with the G37 Sedan or G37 Convertible without separate fitment confirmation. Also verify compatibility with the Nissan 370Z (Z34) which shares the VQ37VHR — confirm G37 Coupe-specific fitment before ordering for a 370Z application. Professional installation by an experienced exhaust shop strongly recommended.

What's Included:

• Invidia Gemini cat-back exhaust system — 2007+ Infiniti G37 Coupe V36 (invHS07IG7GIT)
• Single-layer titanium exhaust tips
• All required mounting hardware and gaskets
• Refer to Invidia's product documentation for complete kit contents

Installation Notes:

• Professional installation by an experienced exhaust shop strongly recommended — cat-back exhaust installation requires correct torque at the mid-pipe connection, correct hanger alignment, and verification of exhaust clearance throughout the system
• Use new gaskets at all connection points — reusing old gaskets risks exhaust leaks that affect performance and generate cabin odour
• Verify exhaust clearance from the body, chassis, and suspension components throughout the system after installation — particularly at the rear valance and bumper cutouts where the dual tips exit
• Allow the exhaust system to heat cycle several times before evaluating the final exhaust note — new exhaust systems can sound slightly different before the packing and seals have fully settled
• The titanium tips will develop a heat-blued finish over time — this is normal and expected. Do not attempt to polish or clean the heat-blued finish with abrasive products — this will remove the bluing.
• Check all connections for exhaust leaks after installation and after the first heat cycle

Why Invidia?

Invidia is a Japanese performance exhaust brand with a strong following among Japanese performance car enthusiasts — known for their Gemini series cat-back systems, N1 cat-back systems, and downpipes for a wide range of Japanese performance platforms including Subaru, Honda, Nissan, Infiniti, and Toyota. Invidia's Gemini series has become a benchmark exhaust upgrade for many Japanese performance platforms — a combination of quality construction, correct fitment, and an exhaust note that enhances the engine's natural character without being overbearing for street use. For G37 Coupe owners who want a quality cat-back exhaust from a brand with a proven track record on the VQ37VHR platform, Invidia Gemini is a well-regarded choice.

Perfect For:

• 2007+ Infiniti G37 Coupe (V36) owners who want to unlock the VQ37VHR's naturally expressive exhaust character with a quality cat-back system and premium single-layer titanium tips
• G37 Coupe builds where improved exhaust flow and a more aggressive, more characterful exhaust note are the priority alongside the visual impact of titanium tips
• Owners who want Invidia's Gemini series quality and the distinctive heat-blued titanium tip aesthetic on their V36 G37 Coupe
• VQ37VHR builds where the Invidia Gemini cat-back is the foundation of a comprehensive exhaust upgrade — pairing with a high-flow mid-pipe or headers for a complete exhaust system improvement

Note: Coupe-specific fitment — not compatible with G37 Sedan or Convertible without separate confirmation. Verify model year and variant before ordering. Professional installation recommended. Titanium tips will develop heat-blued finish over time — do not polish or abrade. Check for exhaust leaks after installation and first heat cycle.