Axle Back Exhaust for Infiniti G35 G37 Sedan (2007-2013) 3.5L 3.7L

High-Flow Axle Back Muffler Delete Exhaust for 2007-2013 Infiniti G35, G37 (V36)

What it Does: The Axle Back Exhaust replaces the restrictive stock rear mufflers on the 2007-2013 G35,G37 to eliminate exhaust backpressure and amplify the natural exhaust note of the VQ platform.

The Stock Infiniti G35,G37 Exhaust Restriction

Factory exhaust assemblies on the V36 sedan utilize heavy, chambered rear mufflers engineered for acoustic suppression rather than volumetric efficiency. These stock silencers create significant exhaust gas recirculation and parasitic backpressure behind the mid-pipe, blunting high-RPM scavenging. Compounding the issue, the OEM units add unnecessary unsprung weight past the rear axle centerline, dulling transient handling response while trapping excessive thermal mass under the rear bumper valence.

The Engineering Solution

This axle-back setup implements a direct straight-through muffler delete fabricated from high-grade polished stainless steel. Featuring 2.50-inch OD mandrel-bent tubing stepping down from a 1.75-inch inlet connection, the design maintains optimal exhaust velocity without turbulence or flow separation. Heavy-duty 3/8-inch CNC flanges prevent thermal warpage and exhaust leaks under sustained track loads. The assembly terminates in aggressive 4-inch OD double-walled polished exhaust tips, designed to resist heat discoloration and deliver the sharp, uninhibited frequency resonance native to the VQ35HR and VQ37VHR powerplants.

Technical Specifications

Compatibility

• 2007-2008 Infiniti G35 Sedan 3.5L V6 (4-Door Sedan)
• 2009-2013 Infiniti G37 Sedan 3.7L V6 (4-Door Sedan)
• Does not fit 2-door Coupe or Convertible models

Frequently Asked Questions

Does this fit the V36 G35,G37?

Yes, this is a direct fit for the 2007-2013 Infiniti G35,G37 equipped with the VQ35HR and VQ37VHR engine.

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

No, this system mounts downstream of all catalytic converters and oxygen sensors, maintaining factory emissions monitoring without triggering diagnostic trouble codes.

The Infiniti Acoustic Standard

Engineered strictly for competition use, this system strips out dead acoustic weight to let the high-revving VQ engine breathe cleanly, providing instantaneous throttle recovery and a crisp, authoritative exhaust tone under wide-open acceleration.