Subaru WRX STi 15-21 3" Non Resonated Mid Pipe Kit Filter with the ID X Series

with the ID X Series injectors being used on record setting cars in nearly every form of racing

This kit consists of 2 cam gears

Synchrotech® Hardened 5th Hub

Complete Boost by Gear installation into your ecu to control PWM pulse width for common MAC solenoid operations

Subaru WRX STi 15-21 3" Non Resonated Mid Pipe Kit Filter with the ID X Series*All headers and large exhaust items may be subject to additional shipping charges* The PLM 3" non resonated mid pipe kit for Subaru WRX STI 3" 2015 2021 was made for maximizing HP gains, more flow, more power, more torque and more sound! CNC mandrel bending allows for a constant tubing diameter throughout the bend, which results in precise fitment as well as improved exhaust gas flow. Each system is fitted with a resonator, includes stainless steel