ISR Performance GT Single Exhaust - Infiniti G35 Coupe 03-07

The ISR Performance GT Single Tip Exhaust is a Y-pipe back exhaust system for the 2003-2007 Infiniti G35 Coupe (V35 chassis, RWD). Mandrel-bent stainless steel with a single 3-inch pipe running to a polished muffler with a 4.5-inch tip. Designed specifically for the G35 Coupe chassis, not adapted from a 350Z exhaust like many cheaper options on the market.

What It Does

Y-pipe back exhaust replaces the entire exhaust system from the Y-pipe to the tip. The 3-inch mandrel-bent piping maintains a consistent inside diameter through every bend, which keeps exhaust velocity up on the VQ35DE. The result is a deeper, more aggressive tone with the flow capacity to support both naturally aspirated builds and forced induction conversions.

Why a G35-Specific Design Matters

Many aftermarket G35 Coupe exhausts on the market are actually 350Z exhausts with extension pipes added to account for the longer G35 wheelbase. That approach almost always produces poor fitment, awkward ground clearance, and a system that hangs lower than it needs to. The ISR GT Single is designed from the ground up around the G35 Coupe chassis dimensions, so it fits correctly and clears the chassis as intended without adapters or extensions.

Fitment

• 2003-2007 Infiniti G35 Coupe (V35) - RWD only

Not designed for the G35 Sedan or AWD variants.

Features

• Designed specifically for the G35 Coupe chassis (not a 350Z adaptation)
• Mandrel-bent for consistent inside diameter
• Precision TIG welded stainless steel
• Brushed stainless finish
• Polished tip and muffler
• 3 inch exhaust piping with 4.5 inch muffler tip

What's in the Box

• 1x 3-inch mid pipe
• 1x 3-inch muffler section with 4.5 inch tip
• 2x 2-bolt 3-inch exhaust gaskets
• 4x Bolts
• 4x Nuts

Product Details

Brand: ISR Performance

Part Number: IS-GT-G35CPE

Type: Y-pipe back Single Exhaust (GT Series)

Vehicle Fitment: 2003-2007 Infiniti G35 Coupe (V35) RWD ONLY

Body Style Restriction: Coupe only (not Sedan)

Drivetrain Restriction: RWD only (not AWD)

Engine: VQ35DE

Material: Mandrel-bent stainless steel

Finish: Brushed stainless

Piping Diameter: 3 inch

Tip Diameter: 4.5 inch, polished

Construction: Precision TIG welded

Application: Naturally aspirated and forced induction

Design Note: Chassis-specific, NOT a 350Z exhaust adapted with extension pipes

Sold: Complete Y-pipe back system

Legality: Off-road and competition use only