Axle Back Exhaust for Infiniti G37 Coupe (2008-2013) 3.7L

High-Flow Axle-Back Muffler Delete Exhaust for 2008-2013 Infiniti G37 (CV36)

What it Does: The Axle-Back Exhaust eliminates the restrictive factory rear mufflers on the 2008-2013 Infiniti G37 Coupe to significantly reduce exhaust backpressure, shedding dead weight and enhancing exhaust scavenging.

The Stock Infiniti G37 Exhaust Restriction

The OEM exhaust system on the CV36 platform routes high-velocity pulses from the naturally aspirated VQ37VHR engine through an oversized, heavily baffled rear muffler assembly. This factory suitcase unit introduces substantial parasitic backpressure, slows exhaust gas velocity at higher RPMs, and adds excessive dead weight over the rear suspension. Furthermore, the internal chambers and restrictive acoustic packing completely suppress the characteristic high-revving exhaust note of the Nissan/Infiniti VQ engine architecture.

The Engineering Solution

This axle-back muffler delete utilizes continuous 2.50-inch outer diameter mandrel-bent piping manufactured from polished stainless steel to establish an uninterrupted, straight-through exit path. Eliminating chambered acoustic resistance allows hot exhaust gases to evacuate rapidly, minimizing turbulence and lowering thermal retention near the rear axle. Heavy-duty 3/8-inch precision-cut flanges guarantee flat, leak-free mating against factory mid-pipes using the included hardware and gaskets. Dual 4.0-inch double-walled polished tips offer improved thermal insulation for the rear bumper fascia while delivering a crisp, resonant tone under load.

Technical Specifications

Compatibility

• 2008-2013 Infiniti G37 Coupe (2-door) 3.7L
• Does not fit G37 Sedan (4-door) models

Frequently Asked Questions

Does this fit the CV36 G37?

Yes, this is a direct bolt-on fit for the 2008-2013 Infiniti G37 Coupe equipped with the VQ37VHR engine.

Will installing this axle-back trigger a Check Engine Light (CEL)?

No, because this system bolts downstream of the factory catalytic converters and oxygen sensors, it will not trigger diagnostic trouble codes.

The Infiniti Acoustic Standard

Designed specifically for the enthusiast driver, this muffler delete extracts the aggressive, raw acoustic tone inherent to the high-revving VQ37VHR platform without requiring modifications to factory underbody heat shielding.