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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30
Larger pistons allow more oil flow which creates improved damping and sustains higher forces
and produce an aggressive exhaust note
Rev faster
Comes pre-installed with thread lock
702 Small Blue 1
HKS Super Turbo Muffler Cat Back Exhaust - 2015-2021 Subaru WRX / STI Subaru-WRX-2026 Larger pistons allow more oilHKS Super Turbo Muffler Cat Back Exhaust 2015 2021 Subaru WRX STI HKS Exhaust Engineering for Street and Track HKS exhaust systems are developed through motorsport application the same engineering approach behind HKS competition vehicles translates into their street products. Ultra thin stainless steel construction reduces weight vs factory while improving corrosion resistance. The Legamax and Hi Power lines have distinct sound and performance