Toyota A90/A91 MK5 Supra Stainless Steel Valved Catback Exhaust

Toyota A90/A91 MK5 GR Supra Stainless Steel Valved Exhaust

Transform the sound and performance of your Toyota GR Supra with this Premium Stainless Steel Valved Exhaust System, engineered to deliver improved exhaust flow, reduced back pressure, and an aggressive exhaust note—all while retaining the ability to switch between refined daily driving and maximum performance at the touch of a button.

Designed specifically for the Toyota A90/A91 MK5 GR Supra equipped with the BMW B58 turbocharged engine, this direct bolt-on cat-back exhaust system features a free-flowing mandrel-bent design that allows the turbocharger to operate more efficiently while producing a deeper, more aggressive exhaust tone.

Constructed from premium T304 stainless steel with precision TIG welding, this system offers exceptional durability, corrosion resistance, and long-lasting performance. The integrated electronic valve system gives you complete control over your exhaust sound, allowing you to choose between a quiet cruising mode and a fully open performance mode whenever you desire.

Whether your Supra is completely stock or running a Stage 1, Stage 2, or upgraded turbocharger setup, this Stainless Steel Valved Exhaust delivers the perfect balance of everyday comfort and exhilarating performance.

Key Features

Electronically Controlled Valves

Switch between a refined, quiet exhaust note and an aggressive performance sound using the supplied remote control valve system.

Premium T304 Stainless Steel Construction

Manufactured from high-quality T304 stainless steel for superior durability, corrosion resistance, and long-term reliability.

Mandrel Bent Pipework

Precision mandrel-bent tubing maintains maximum internal diameter for unrestricted exhaust flow and improved performance.

Precision TIG Welded

Professionally TIG welded throughout to ensure exceptional strength and long-lasting durability under demanding driving conditions.

Improved Exhaust Flow

Reduces exhaust back pressure, allowing the turbocharger to spool more efficiently while improving overall engine performance.

Direct Bolt-On Installation

Designed as a direct replacement for the factory cat-back exhaust using the original mounting locations without permanent modifications.

Performance Benefits

Increased Horsepower & Torque

The free-flowing design reduces exhaust restriction, allowing the B58 engine to produce improved horsepower and torque, particularly when combined with supporting modifications and ECU tuning.

Faster Turbo Response

Improved exhaust flow enables quicker turbocharger spool for sharper throttle response and stronger acceleration.

Reduced Exhaust Back Pressure

Allows exhaust gases to exit more efficiently, improving turbocharger efficiency and overall engine breathing.

Perfect for Modified Vehicles

Ideal for stock vehicles through to Stage 2 and upgraded turbocharger builds looking to maximise both sound and performance.

Sound Characteristics

With the valves closed:

• Comfortable OEM-style cruising

• Minimal cabin drone

• Perfect for daily driving and long-distance touring

With the valves open:

• Deep, aggressive exhaust note

• Louder cold starts

• Enhanced turbo spool and induction sounds

• Sharper pops and crackles (ECU tune dependent)

• Significantly increased exhaust presence throughout the RPM range

The electronic valve system allows you to instantly change the exhaust character to suit any driving situation.

Vehicle Fitment

Toyota GR Supra A90 (2020–2022)
Toyota GR Supra A91 (2021+)

Engine: BMW B58 3.0L Turbocharged Inline-6

Please Note

Professional installation is strongly recommended.

The electronic valve system operates independently using the supplied control module and remote controls.

This exhaust system is designed for factory downpipe fitment but is also compatible with most aftermarket downpipes designed for the A90/A91 GR Supra.

Exhaust sound may vary depending on whether the vehicle is fitted with a factory, high-flow catted, or catless downpipe.

Why Choose Proven Performance Parts

We specialise in high-performance parts for European vehicles — including Volkswagen GTI & R models, Audi S/RS platforms, and BMW M vehicles. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.