HKS Dual Muffler Exhaust System - Toyota GR Supra (A90/A91)

OVERVIEW

Debuted at SEMA 2019 on HKS's demo car, this dual-muffler exhaust system for the GR Supra sounds as good as it looks. HKS increased the main pipe size from 80mm to 85mm, extracting an extra measure of power from the B58 inline-six. The system retains the factory valved exhaust setup and reuses the OEM actuator motor, so you control the sound just like the factory system.

SPECS

• Main pipe increased from 80mm to 85mm, sized to support subsequent upgrades
• Retains full factory valve operation using the OEM actuator and control — no additional controller needed
• Full independent dual layout for both banks — no 2-into-1 junction like the stock system
• Reduces exhaust interference, enabling stress-free revving through the high-RPM range
• Exhaust note tuned through extensive sound-frequency analysis for a distinct, pleasant tone
• Dyno-proven gains of 30+ horsepower, verified internally at HKS and by external facilities

PARTS INCLUDED

• HKS dual-muffler cat-back exhaust system
• Gaskets and mounting hardware

TECH RESOURCES

• Reuses the stock exhaust valve actuator and control — no additional controller required
• For vehicles without OPF (Otto Particulate Filter)

PART NUMBER

• 31014-KT001

VEHICLE APPLICATIONS