HKS Hi-Power Cat Back Exhaust Single Exit Subaru WRX / STI 2015-2021 | 31006-BF003 Maxima_1989-1994 OE-quality fitment and reliability

OE-quality fitment and reliability

For right-hand-drive vehicles

Lightened Flywheel Included - Reduces rotational mass for quicker revs and improved throttle response

What sets this system apart is the included purpose-built splitter

Includes all new hardware

HKS Hi-Power Cat Back Exhaust Single Exit Subaru WRX / STI 2015-2021 | 31006-BF003 Maxima_1989-1994 OE-quality fitment and reliabilityTransform the sound, appearance, and performance of your Subaru with the HKS Hi Power Single Exit Cat Back Exhaust System. Designed specifically for the 2015 2021 WRX and STI, this premium exhaust replaces the factory quad tip setup with an aggressive single exit configuration featuring an 85mm main pipe and race inspired muffler design. Constructed from high quality SUH409 coated steel and SUS304 stainless steel, the Hi Power exhaust reduces back