ISR Performance 99-05 Lexus IS300 GT Single Exhaust

This ISR Performance GT Single Exhaust system is what you get when you order part number IS-GT-IS300-1G. It includes the full cat-back exhaust assembly, designed to replace your stock system from the catalytic converter back to the rear of the vehicle. This setup is built to give your 1999-2005 Lexus IS300 a more aggressive exhaust note and improved flow over the factory setup.

Crafted from durable stainless steel, this exhaust is built to resist corrosion and handle the heat cycles of daily driving. The single muffler design is intended to offer a distinct sound profile, often described as deeper and more pronounced than stock, without being overly raspy. Its cat-back configuration means it bolts directly onto your existing catalytic converter, simplifying the installation process compared to systems that require cutting or welding. This makes it a popular choice for IS300 owners looking for a noticeable change in their car's sound and a cleaner look at the rear.

When installing this system, you'll want to ensure you have the necessary hardware, which typically includes new gaskets for the connection to the catalytic converter and any mid-pipe connections. While this system is designed as a direct fit, it's always a good idea to refer to ISR Performance's specific installation guide for any unique steps or torque recommendations to ensure a solid, leak-free fit. The result is a well-built exhaust that enhances both the auditory and visual appeal of your Lexus IS300.