Invidia HS07IG4G3T Q300 Cat-Back Exhaust Kit for 07-15 Infiniti G25/G35/G37/Q40

Vehicle Fitment

• 2007-2008 Infiniti G35 Sedan (V36, RWD/AWD, 3.5L V6)
• 2011-2012 Infiniti G25 Sedan (V36, RWD, 2.5L V6)
• 2009-2013 Infiniti G37 Sedan (V36, RWD, 3.7L V6)
• 2009-2013 Infiniti G37x Sedan (V36, AWD, 3.7L V6)
• 2015 Infiniti Q40 Sedan (V36, RWD/AWD, 3.7L V6)

Fitment Notes

• Sedan (4-door) only -- does not fit G35/G37 Coupe or Convertible
• Compatible with both RWD and AWD (G37x) models
• Q40 is a one-year rebadge of the G37 on the same V36 platform -- confirmed fitment
• Exhaust hangers welded to OE stock locations for direct bolt-on installation
• For off-road use only

Features

• Invidia Q300 series cat-back exhaust
• Single layer burnt titanium tips
• SUS304 mandrel-bent stainless steel piping
• Flat-bottom muffler design for improved aerodynamic clearance
• Continuous internal piping with Advantex sound-absorbing material
• CNC-machined flanges
• Robot TIG welded construction
• OE hanger location welded for stock-position fitment
• All necessary hardware and gaskets included
• Deep, sporty exhaust tone -- quieter than R400 and N1 series

Specifications

• Piping Inner Diameter: 2.36 in. (60mm)
• Tip Diameter: 4 in. (101mm)
• Tip Style: Single layer burnt titanium
• Piping Material: SUS304 stainless steel
• Resonated: Yes
• Silencer Included: No
• Flex Joint: No
• Piping Coating: None
• System Type: Cat-back

Included Components

• 1x Cat-back exhaust system
• 1x Pair single layer burnt titanium tips
• 1x Hardware kit (clamps, gaskets, hangers)

Product Description

The Invidia HS07IG4G3T is a Q300 series cat-back exhaust system built specifically for the Infiniti V36 sedan platform, covering the G25, G35, G37, G37x, and Q40 in 4-door configuration from 2007 through 2015. Constructed from mandrel-bent SUS304 stainless steel with CNC-machined flanges and robot TIG welding throughout, the Q300 delivers a level of build quality that matches the premium nature of the G-series platform. The flat-bottom muffler housing improves underbody aerodynamic clearance at speed, while the Advantex-packed continuous internal piping design optimizes exhaust backpressure for measurable gains in horsepower and torque without sacrificing sound quality.

The Q300 series sits between Invidia's street-oriented N1 and track-focused R400 lines, producing a rich, deep exhaust note that enhances the natural V6 soundtrack without crossing into drone or excessive volume on the highway. Single layer burnt titanium tips add an aggressive visual finish. Exhaust hangers are welded to OE stock locations for a true bolt-on installation, and the system is fully compatible with both RWD and AWD (G37x) sedan variants. All