WRX CUSTOMIZED PARTS

The 4th generation WRX sport sedan that has both good drivability and safety. HKS has been making tuning parts for 2nd and 3rd generation IMPREZA WRX "BB TUNE (BOXER'S BALANCE TUNING)" which is safe and highly efficient tuning. And we put all the know-hows from old parts and the new technology together to make another great products for SUBARU WRX.

  • High Performance & Stylish Appearance!

    "90mm slashed dual tips coming from both sides provides stylish appearance.
    74.7mm→60.5mm×2 pipes & straight silencer enable use with highly tuned vehicles."
    Silent Chamber Reduces Unwanted Low Resonance!

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  • Bullet-type titanium tips makes sporty appearance.

    Small diameter bullet type silencer  with titanium colored tips make projects a sporty image.

    for VAFmore information

    for VAGmore information

  • Sporty and Light weight

    It's very light even with the stainless material. The muffler shape is bullet shell with fiber carbon wrapped at tail tip.

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  • Exhaust System Integrating Low Exhaust Pressure & Silence

    Not just powerful performance with quiet sound!
    Once stepping on the accelerator pedal, dry sporty exhaust sound is heard throughout the comfortable vehicle's interior.

    for VAB
    (Twin)
    more information

    for VAB
    (Single)
    more information

    for VAGmore information

  • Impressive Appearance with Double-sided Dual Exhaust Tips

    Blue graduation dual exhaust tips enhance the appearance from behind!
    Straight pipe structure, but pleasant vehicle inside space is provided without uncomfortable exhaust resonance.

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  • The sports type catalyzer that withstands the high engine power and provides high purifying performance required by a high performance car.
    Optimizing the number of cells and piping improves the engine output and response. The difference can be felt right after installation.

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  • Engine Response Improvement & Smooth Acceleration to High Speed

    Improved exhaust efficiency provides more fun to drive.

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  • "MAX IV GT Spec-A" is a new HKS suspension model with new concept based on MAX IV GT.
    The ride quality for street and motion performance is achieved together in higher levels by securing sufficient stroke amount than conventional MAX IV GT.

    for VABmore information

    for VAGmore information

    for VAFmore information

  • Most effective and smooth suspension for strong body

    We setup this suspension with conventional HIPERMAX single tube structure and new system of variable port system and piston. It provides smooth and yet strong and stable feeling to the driving.

    for VAFmore information

    for VAGmore information

  • Sport model to drive for the winding roads

    It's not hard setting damper but aggressively active setting. We have set it for enough stroke to move. This suspension will provide stable and safe driving by not allowing tires to float.

    for VABmore information

    for VAGmore information

  • Bette response and long life

    It has a great durability and performance by having hybrid non-woven and polyurethane foam. The filter is replaceable, therefore it's cheaper to maintain the car.

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  • Carbon fiber was chosen for its high tensile strength and beautiful appearance.

    The twill weave emphasizes each strand of carbon and delivers a premium motorsport appearance. A Matte top coat is used to reduce unnecessary reflection and emphasize the natural beauty of carbon fiber. The intake efficiency is higher than the stock, but is still compatible with stock engine management.

    for WRX
    STI/VAB
    more information

    for WRX
    S4/VAG
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  • Dual valve structure allows the pressure control over all boost range.

    Reliable operation in a wide boost range is possible.
    The pressure control is performed stably.
    The blow-off sound from Super SQV4 makes driving more fun and aggressive!
    The operation sound level can be adjusted by installing the suction return parts included in the kit.

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  • 6PK1905 as a stock replacement for WRX S4 is newly added to Fine Tune V Belt.

    Increased durability at high temperatures which can be found in the engine bay of tuned vehicles.
    And increased performance in cold weather areas and conditions. Also lightweight with good friction tolerance properties means that excess tension is not required whilst anti sound properties reduces belt squeal.

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  • Upgraded Ignitionability, Durability and anti-insulation

    It has improved ignitionability by the 0.6mm iridium alloys center electrode and platinum square chip, thermal edge and supporting spark gap. It also prevents from pile of carbon and insulation.

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HKS parts for SUBARU WRX STI [VAB] / S4 [VAG]

Code No. Product Release Remark
EXHAUST
31021-BF001 LEGAMAX Premium On Sale  
31021-AF024 LEGAMAX Premium for VAG On Sale Rear section only.
31019-AF030 Hi-Power SPEC-L (Center+Main) On Sale  
31006-BF001 Hi-Power Muffler On Sale  
31029-AF011 Super Turbo Muffler (Center+Main) On Sale Center pipe included.
* The tip's color is silver not blue gradation.
31029-AF012 Super Turbo Muffler On Sale * The tip's color is silver not blue gradation.
33005-AF014 Metal Catalyzer for VAB On Sale For 6MT. Front pipe included.
33005-AF019 Metal Catalyzer for VAG On Sale Stock weight:4.1kg→HKS:3.6kg
  Exhaust & ECU Package In development Metal Catalyzer + Flash Editor
SUSPENSION
80230-AF009V HIPERMAX MAX IV GT Spec-A for VAB On Sale *Bump rubber which is equivalent to 19N/mm(2kgf/mm)
spring rate is installed as well
80230-AF009V HIPERMAX MAX IV GT Spec-A for VAG On Sale *Bump rubber which is equivalent to 19N/mm(2kgf/mm)
spring rate is installed as well
80230-AF009V HIPERMAX MAX IV GT Spec-A for VAF On Sale *Bump rubber which is equivalent to 19N/mm(2kgf/mm)
spring rate is installed as well
80230-AF008 HIPERMAX MAX IV GT for VAG On Sale  
80230-AF008 HIPERMAX MAX IV GT for VAF On Sale  
80250-AF003 HIPERMAX MAX IV SP for VAB On Sale  
80250-AF003 HIPERMAX MAX IV SP for VAG On Sale  
INTAKE/BLOW OFF
  Racing Suction Reloaded In development  
  Premium Suction In development  
70017-AF001 SUPER HYBRID FILTER On Sale  
70026-AF001 DryCarbon Suction Kit On Sale For STI
70026-AF003 DryCarbon Suction Kit On Sale For S4
70999-AF001 Air Intake Funnel   Discontinued.
71008-AF013 SQV IV On Sale For STI
71002-AF002 SQV Return Kit On Sale For STI
71008-AF013V SQVⅣ+Return Set On Sale For STI
ELECTRONICS
45999-AK002 OB-LINK TYPE001 Checking  
ENGINE
24996-AK035 FINE TUNE V-BELT 6PK1905 On Sale  
POWER TRAIN
26010-AF001 LA CLUTCH On Sale  
26011-AF001 LA CLUTCH TWIN On Sale  
OIL&OIL FILTER
52009-AK005 OIL FILTER On Sale  
24003-AK002 Billet Oil Filler Cap On Sale  
PLUG
50003-M35iL SUPER FIRE RACING M35iL On Sale For STI
50003-M40iL SUPER FIRE RACING M40iL On Sale For STI
50003-M45iL SUPER FIRE RACING M45iL On Sale For STI
50003-M40HL SUPER FIRE RACING M40HL On Sale For S4
50003-M45HL SUPER FIRE RACING M45HL On Sale For S4
50003-M50HL SUPER FIRE RACING M50HL On Sale For S4