Delivery time: approx. 4-6 weeks (Made-To-Order)

HKS Dual Muffler Catback Exhaust System – Toyota Supra B58 3.0 (2019+) (Without OPF)

Article code: 31014-KT001 | Premium stainless steel catback with dual mufflers and a sporty, deep sound

The HKS Dual Muffler Catback Exhaust System has been specifically developed for the Toyota GR Supra MK5 (A90/A91) B58 3.0 (2019+, without OPF). This high-quality exhaust system combines the iconic HKS quality with a perfect balance of performance, sporty sound, and daily comfort.

With its dual mufflers and optimized pipe diameter, this system offers a significant improvement in exhaust gas flow, noticeably improving response, torque, and top-end power. At the same time, it delivers a deep, powerful, and refined exhaust sound, typical of HKS, without annoying resonance at constant speeds.

The system is entirely made from high-grade stainless steel (SUS304) and developed with precise welding and a perfect fit, ensuring easy and durable installation.

⚠️ Important: This version (31014-KT001) is suitable only for Supras without OPF. The flange construction differs from the OPF version, making this system not interchangeable with OPF models without modifications.

Key Features

✅ Dual muffler design – sporty look & sound
✅ Deep and powerful HKS sound – aggressive on acceleration, comfortable at cruise
✅ Improved airflow & performance – lower back pressure and faster response
✅ Full stainless steel (SUS304) – durable, heat, and corrosion resistant
✅ Perfect OEM fit – direct replacement, no modifications needed
✅ Made in Japan – premium quality from HKS

Technical Specifications

Why choose the HKS Dual Muffler Catback system?

• Reliable HKS quality – globally renowned in motorsport and tuning

• Perfect balance – sporty but not excessively loud

• Maximum performance – lower back pressure for higher power and faster response

• Visual upgrade – dual tailpipes give the Supra a more aggressive look

• Durable & low maintenance – high-quality stainless steel with precise finish

Perfectly combinable with:

• ECU remap / Stage 1-3 tuning – unleash the full potential of the B58 engine

• HKS, Wagner or Mishimoto cooling upgrades – for lower intake temperatures

• HKS Suspension upgrades – for a complete Supra performance setup

Application

• Toyota GR Supra A90 / A91 (2019+, without OPF)

• B58 3.0L turbo engine

• Not suitable for OPF models without modifications

• Suitable for street use, track days, and performance builds

Installation

The HKS Dual Muffler Catback is a bolt-on system, fitting onto the original mounting points of the Supra. Installation can be performed without permanent modifications.

For optimal performance, installation by a specialist is recommended.

Delivery Time & Availability

Original HKS Japan product – typically 6–8 weeks delivery time after ordering.

Summary

• ✅ Premium Japanese exhaust system from HKS

• ✅ Sporty, deep, and refined sound without drone

• ✅ Better airflow and performance due to lower back pressure

• ✅ Dual muffler design with OEM fitment

• ✅ Specifically for the Supra without OPF – not compatible with OPF models

• ✅ Delivery time approx. 6–8 weeks

With the HKS Dual Muffler Catback Exhaust System, you elevate your Toyota GR Supra A90 to a higher level – in terms of performance, sound, and appearance. An absolute must-have for Supra drivers who settle for nothing but the best.