Automotive Parts and Accessories: SSQV Flange Type Blow Off Valve Adaptor Bolt on for WRX STI Fit Any SSQV or HKS Style BOV - Godspeed

Automotive Parts and Accessories: HKS Turbo Timer Harness FT-3 Subaru 02-06 WRX / 04-06 Sti - HKS

Automotive Parts and Accessories: Torque Solution HKS BOV Adapter Flange w/ Plug Subaru WRX / STi - Torque Solution

Automotive Parts and Accessories: Torque Solution HKS BOV Adapter Flange Subaru WRX / STi - Torque Solution

Automotive Parts and Accessories: HKS Tubro Timer Type-0 and HKS Turbo Timer Harness FT-6 Subaru 08-10 WRX / 08-11 Sti - HKS

Automotive Parts and Accessories: Torque Solution HKS BOV Adapter Flange Subaru STI 2004 04 - Torque Solution

Automotive Parts and Accessories: NYPPD HKS Type Blow off Valve Adapter: Subaru WRX 2002-2007 STi 2004-2014 - NYPPD

Home Improvement: 2 X HKS Power Racing Decal Sticker (New) Black/red Size 7"x2.2" - click 2 go

Automotive Parts and Accessories: HKS Turbo Timer Harness FT-6 Subaru 08-10 WRX / 08-11 Sti - HKS

Home Improvement: HKS Performance HKS Type-0 Turbo Timer with Red LED Back Light (Made in Japan) - HKS

Home Improvement: HKS Performance HKS Type-0 Turbo timer with White LED Back Light (Made in Japan) - HKS

Automotive Parts and Accessories: Torque Solution HKS BOV Adapter Flange Subaru STI 2005 05 - Torque Solution

Automotive Parts and Accessories: Torque Solution HKS BOV Adapter Flange Subaru STI 2008 08 - Torque Solution

Automotive Parts and Accessories: Torque Solution HKS BOV Adapter Flange Subaru STI 2011 11 - Torque Solution

Home Improvement: 3" BRAND NEW HKS Super Power Flow Reloaded Air Filter + 1 Extra Replacement Filter Element Dry 3 Layers Refill (Green) Made in Japan - HKS

Home Improvement: GENUINE JDM WHITE SUBARU STI DURACON SHIFT KNOB IMPREZA, LEGACY 6 MT (Made in Japan) Universal Fit for most SUBIE - High Performance Parts

Automotive Parts and Accessories: HKS 41003-AF006 Turbo Timer Harness - HKS

Automotive Parts and Accessories: ATP HKS BOV Flange Adaptor for 02-07 WRX /04-09 STi - ATP

Home Improvement: (BRAND NEW) HKS Japan 1.3kg/cm RADIATOR CAP w/ PRESSURE RELEASE FUNCTION BIG HEAD (Made in Japan) - High Performance Parts

Home Improvement: GENUINE JDM BLACK SUBARU STI DURACON SHIFT KNOB IMPREZA, LEGACY 6 MT (Made in Japan) Universal Fit for most SUBIE - High Performance Parts

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Sti Hks Popular Q&A

Q: Subaru sti hks exhaust is too quiet... why?
A: "I have a full turbo catback hks exhaust" Which is it? Turboback or catback? You mentioned midpipe so I guess you meant catback. If you want it obnoxiously loud... Read More »

Q: How to install an HKS turbo timer in an 05 sti?
A: Just make sure your city's law allows you to have your engine running out in public without you in the car. Even if precautions are taken so that no one can act... Read More »

Q: I hv a 2005 subaru sti spec c.n i hv change my standard camgear t...
A: a 05 sti spec c. i haven't ever heard of that. are you in the usa? Read More »

Q: Will a hks ssqv blow off valve work on a stock wrx sti 08 interco...
A: I drive an 09 Sti and a few of my friends have subaru's (WRX - STi) None of us run a BOV, mostly because we havent turned the psi past any ridiculous amounts. S... Read More »

Q: Is good to put a HKS BOV in a subaru wrx sti stock?
A: The only benefit is sound and you are hurting performance. Since you lose the air, there is extra fuel. Therefore the car runs rich, not lean. The bogging in be... Read More »