EOS Exhaust for Toyota GR Supra A90 A91 (20-26) 3.5" Non-Resonated Catback w/ 5" Burnt Tips

Make your A90 or A91 GR Supra louder and open up the exhaust flow with this non-resonated catback from EOS. The system uses 3.5-inch mandrel-bent piping with a straight-through design and finishes with two large 5-inch burnt tips.

This setup does not reuse the Supra’s factory exhaust valve, so there is no quiet valve-closed mode after installation. If you want the car to stay tame when you leave early in the morning, this probably is not the exhaust for you. If you want a louder B58 exhaust note without spending valved-catback money, this is the more straightforward setup.

Fitment Information

• Toyota GR Supra A90 / A91 (2020, 2021, 2022, 2023, 2024, 2025, 2026)

Fitment Notes

• EOS lists this exhaust for all A90 and A91 GR Supra models
• Includes a midpipe inlet adapter for the factory downpipe
• Compatible with aftermarket downpipes that use an 80mm outlet
• Aftermarket downpipes with a different outlet size may require an additional adapter or fabrication
• Does not reuse the factory exhaust valve
• Factory exhaust valve operation will no longer change the exhaust sound

Emissions Compliance

This catback installs behind the factory catalytic converter and does not remove, replace or modify the factory emissions equipment.

Sound and Factory Valve Operation

This is a non-resonated, straight-through exhaust, so it will be considerably louder than the factory system. Cold starts, hard acceleration and downshifts will all have more volume. Since the EOS system does not reuse the factory valve, you will not be able to close the exhaust for a quieter drive.

Specs and Features

• Non-resonated catback exhaust system
• Straight-through exhaust design
• T-304 stainless steel construction
• 3.5-inch mandrel-bent exhaust piping
• Dual 5-inch burnt exhaust tips
• Double-wall tip construction
• Slant-cut tip design
• Anodized silver piping finish
• EOS claims 65% more exhaust flow than the factory system
• Manufacturer-tested gains of up to 6 wheel horsepower and 8 lb-ft of wheel torque
• Designed to support stock and higher-power Supra builds
• Direct bolt-on installation
• No drilling required

What’s Included

• EOS 3.5-inch non-resonated catback exhaust system
• Left and right exhaust sections
• Two 5-inch burnt exhaust tips
• Midpipe inlet adapter
• Clamps and installation hardware

Installation

The EOS catback bolts to the factory exhaust connection using the included midpipe adapter. No drilling is required. Professional installation is recommended to make sure the system is properly aligned and both 5-inch tips sit evenly in the rear bumper openings.

Watch the GR Supra Exhaust Sound Clip

Here is a sound clip from EOS showing how their non-resonated catback sounds on the A90 GR Supra.

Pairs Well With

• aFe Cold Air Intake for Toyota GR Supra B58 – Adds more turbo and induction sound from the front of the car while the EOS catback brings out more of the B58 exhaust note.
• IRL Gen 2 Charge Pipe for A90/A91 GR Supra – Replaces the factory charge pipe with a stronger upgrade for B58-powered Supras running more boost or supporting modifications.
• Dinan Lowering Springs for Toyota GR Supra – Tightens up the stance and reduces the wheel gap without turning the Supra into a full coilover project.

About EOS Exhaust

EOS Exhaust makes vehicle-specific exhaust systems for modern performance cars. Their Supra exhausts focus on straightforward stainless steel construction, larger piping and direct-fit installation without pushing the price into the range of high-end valved systems.