ISR Performance GT Single Exhaust - Toyota GR86 / FRS / BRZ

Flat four engines have a distinctive voice, and the ISR Performance GT Single exhaust for the Toyota GR86, Scion FR-S and Subaru BRZ is tuned to bring it out. A single large muffler and single tip produce a deep, refined tone that suits both the FA20 in the first generation cars and the FA24 in the GR86 and second generation BRZ, without the thin rasp that cheap systems add to these engines.

Materials and fabrication

• T304 stainless steel construction for corrosion resistance
• Mandrel bent tubing with no crushed sections to restrict flow
• TIG welded joints
• Single large muffler, single tip configuration

What changes on the car

Lower back pressure means better exhaust flow, which on a naturally aspirated engine shows up as a modest gain in power and a more immediate throttle response. Pair it with a header and tune and the GT Single becomes part of a complete breathing package. On its own, the biggest difference you will notice is the sound, which is unmistakably ISR.

Vehicle compatibility

Toyota GR86, Toyota 86, Scion FR-S and Subaru BRZ. Reach out if you want help confirming fitment for your specific year and trim.

Fitting the system

Everything bolts up to the factory mounting points and hangers. No cutting, no welding and no fabrication, so a swap back to stock is just as simple.

Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.

All ISR Performance products are designed for off-road use only.