HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
3112-EX005
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Cat Back Exhausts
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Exhausts
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Here, you are looking at the HKS Carbon-Ti Cat-Back Exhaust System. This is a great way to improve the performance and the sound of...
HKS Cold Air Intake w/ Matte Carbon Fiber Box - Subaru STi 2015-2017
70026-AF004
Air Induction
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Highly effective intake system designed for HKS Racing Suction to increase flow of cold and oxygen dense air to the engine. The kit includes...
HKS Hi-Power Exhaust - Subaru WRX / STi 2002-2007
3106-EX008
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Cat Back Exhausts
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Exhausts
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On this page, you are looking at the HKS Hi-Power Exhaust System. This exhaust system improves the performance by lifting the restrictions found in...
HKS Hi-Power Single Racing V2 Catback Exhaust - Subaru BRZ 2013-2021 / Scion FR-S 2013-2016 / Toyota 86 2017-2021
32016-BT003
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Cat Back Exhausts
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Exhausts
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This "Hi-Power" exhaust system from HKS was designed with both style and performance in mind. Features SUH409 stainless steel exhaust piping, SUS304 stainless steel...
HKS RS Air Intake System - Subaru STi 2015-2021
70020-AF108
Air Induction
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Highly effective intake system designed to increase the flow of cold and oxygen dense air to the engine. Features Kit includes Super Power Flow...
HKS SSQV4 Blow Off Valve - Subaru WRX 2002-2007 / STi 2004-2007 / Forester XT 2006-2008
71008-AF006
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Blow Off Valves & Accessories
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Forced Induction
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The all new HKS redesigned Super Sequential Blow-Off Valve 4 (SSQV4) for the Subaru WRX and STI features the same high performance dual stage...
HKS SSQV4 Blow off Valve - Subaru WRX 2008-2014 / Legacy GT 2005-2009
71008-AF012
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Blow Off Valves & Accessories
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Forced Induction
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The HKS redesigned Super Sequential Blow-Off Valve III (SSQV4) for the 2008-2014 WRX is a high performance dual stage pull-type blow-off/bypass valve capable on...
HKS SSQV4 Blow Off Valve - Universal
71008-AK001
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Blow Off Valves & Accessories
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Forced Induction
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Reliable functionality of the Super SQV 4 is unchanged and utilizes the same mounting flanges as all previous generation SSQVs. This assures compatibility with...
HKS Super SQV4 Blow Off Valve - Subaru STi 2008-2021
71008-AF013
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Blow Off Valves & Accessories
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Forced Induction
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This is the grandfather of blow-off valves with its flagship sound that remains to be one of the most effective blow-off valves in the...
