Rev9 Exhaust for Lexus GS300 / GS350 3rd Gen S190 (06-11) Dual Mufflers w/ 4-Inch Double-Wall Tips

A Deeper Exhaust Note for the 3rd Gen Lexus GS

The Rev9 FlowMAXX axleback exhaust gives the 3rd generation Lexus GS a more aggressive rear-end look and a deeper exhaust note without replacing the factory catalytic converters or mid-pipe. Dual polished mufflers, 62mm stainless piping, and 4-inch double-wall tips make this a clean bolt-on upgrade for the S190 chassis.

Fitment Information

• Lexus GS300 S190 3.0L V6 (2006), RWD, AWD
• Lexus GS350 S190 3.5L V6 (2007, 2008, 2009, 2010, 2011), RWD, AWD
• Lexus GS430 S190 4.3L V8 (2006, 2007), RWD
• Lexus GS460 S190 4.6L V8 (2008, 2009, 2010, 2011), RWD

Fitment Note

This is an axleback exhaust for the 3rd Gen Lexus GS. It replaces the rear muffler sections after the factory mid-pipe and uses the factory exhaust mounting locations. It does not fit GS450h hybrid models.

Specs and Features

• Exhaust System
  • Rev9 FlowMAXX axleback exhaust
  • Rev9 part number: CB-1001
  • Dual polished mufflers
  • 62mm stainless steel exhaust piping
  • Dual 4-inch polished double-wall exhaust tips
• Construction and Installation
  • Stainless steel piping and muffler construction
  • Mandrel-bent piping for a smoother exhaust path
  • TIG-welded joints
  • Direct bolt-on replacement for the factory rear mufflers
  • Uses factory exhaust hangers and mounting locations

Product Description

The Rev9 FlowMAXX axleback exhaust is a simple way to give the 2006-2011 Lexus GS a more noticeable exhaust note without changing the front half of the factory exhaust. The system replaces the rear muffler sections with dual polished mufflers and 62mm stainless piping, then finishes the rear of the car with 4-inch double-wall tips.

Because this is an axleback system, installation stays straightforward. It bolts on after the factory mid-pipe, keeps the factory catalytic converters in place, and uses the original exhaust hanger locations. It is a good option for GS owners who want a deeper tone and a more finished rear-end look without committing to a full catback exhaust.

What an Axleback Changes on Your Lexus GS

An axleback changes the rear mufflers, so the biggest difference is sound and appearance. It will not replace the factory mid-pipe, catalytic converters, or headers. If you want a deeper tone while keeping the installation simple, this is the right place to start. Make sure the exhaust is fully seated and centered before tightening the clamps so both tips sit evenly in the rear bumper openings.

Related Upgrades for Your 3rd Gen Lexus GS

• K&N Typhoon cold air intake for Lexus GS350 - Complements the exhaust with a less restrictive intake path and more induction sound on 2007-2011 GS350 models.
• TEIN S.Tech lowering springs for Lexus GS300 and GS350 - Adds a lower stance that pairs well with the larger Rev9 exhaust tips.
• Godspeed rear adjustable toe arms for Lexus GS - Helps restore rear toe adjustment after lowering the S190 chassis.

About Rev9

Rev9 produces performance upgrades for a wide range of import and domestic vehicles, including exhaust systems, suspension components, turbo kits, intercoolers, and exterior parts. Its FlowMAXX exhaust line focuses on vehicle-specific fitment, stainless construction, and a more aggressive sound and appearance at a practical price point.