HKS Legamax Premium Catback Exhaust WRX / STI (2015-2018) Speedwell Wheels Rows: Standard: 2 / X-Line:

Rows: Standard: 2 / X-Line: 3

including extreme driving

unmatched muffler technology

reliable horsepower gains

These Agency Power intake tubes are designed to fit the Scion FR-S

HKS Legamax Premium Catback Exhaust WRX / STI (2015-2018) Speedwell Wheels Rows: Standard: 2 / X-Line:This HKS Legamax Premium exhaust system is designed specifically for the 2015 2017 Subaru WRX and STI. Legamax Exhaust Systems are designed for high end sports cars to reduce backpressure and increase exhaust flow for greater peak power and a broader torque band. Each Legamax Premium Exhaust application utilizes a specific muffler design and shape along with the appropriate piping diameter to maintain low end torque while maximizing high end