HKS Dual Muffler Exhaust System | 2020-2021 Toyota GR Supra B58

Description
Piping diameter is increased sufficiently throughout the system, capable of supporting subsequent upgrades. Retains full functionality of the factory valve operation by incorporating use of the OEM actuator. Through extensive sound frequency analysis, the exhaust note is tuned to be distinct and pleasant. Dyno proven gains of 30+ horsepower as measured internally at HKS and at external facilities.
Features
Piping diameter is increased sufficiently throughout the system, capable of supporting subsequent upgrades
Retains full functionality of the factory valve operation
The exhaust note is tuned to be distinct and pleasant
Dyno proven gains of 30+ horsepower