Description
HKS Super Turbo Muffler (Cat-Back)
Product Overview: HKS Super Turbo Muffler (Cat-Back) is an exhaust-system component engineered to improve exhaust flow and deliver HKS-specific sound and packaging. This listing is structured around the exact HKS product/SKU so shoppers can match the component to the intended vehicle or build without relying on a generic product-family description.
Vehicle Application: 2020-2026 Toyota GR Supra 3.0L B58 (A90)
Driver Benefit: A freer-flowing exhaust can reduce restriction downstream of the engine while giving the driver a more purposeful exhaust note and a performance-oriented appearance.
Recommended Use: Best suited to street and track-oriented builds seeking an exhaust upgrade without changing unrelated engine systems.
Technical & Fitment Notes
- Confirm piping/tip configuration, emissions-equipment compatibility, and any trim or drivetrain-specific fitment notes for the exact HKS part number.
- Exhaust sound and cabin presence vary with the rest of the exhaust system, engine configuration, and vehicle modifications.
- Original catalog note: Note: For Supra B58 3.0 without OPF type The SUPER TURBO MUFFLER has the same pipe diameter as the Dual Muffler, 31014-KT001, that had been released previously. Using the latest HKS technology we had succeeded in controlling the sound and keeping the volume low. We recommend this product for those, who are equipped with a catless downpipe and who are wanting to suppress the exhaust sound as much as possible. Features: - Inspection Ready: Ability to maintain a sporty sound while suppressing unpleasant sounds. This is a muffler for vehicles that need to pass inspection to meet strict Japan domestic noise standards. - Factory Exhaust Valve Compatible: Structure that allows usage of the factory valve. Sports/Normal mode can be switched as is. Certification No. JARI10200001P Main Material SUS304L Outer Tail Diameter 110mm Dual Main Pipe Diameter 85-70mm x 2 Close Noise Level (Factory) 85dB (I
Fitment and specifications can vary by HKS part number, model year, trim, transmission, drivetrain, and market. Confirm the SKU and application before ordering, particularly on modified vehicles.