{"product_id":"hks-4mm-vaccum-filter","title":"HKS 4mm Vaccum Filter","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e 4599-RA017 | \u003cstrong\u003eUPC:\u003c\/strong\u003e 4957266556245\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eHKS 4mm Vacuum Filter 4599-RA017 Universal Fit Turbocharged JDM Vehicles\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe HKS 4mm Vacuum Filter installs inline on vacuum lines to block dirt particles from reaching boost solenoids blow-off valves and controllers. It fits universal 4mm ID hoses on performance vehicles including Subaru WRX STI Nissan Skyline GT-R 350Z and Toyota Supra. This filter maintains consistent vacuum signal flow for dependable boost management and part protection.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4mm Diameter:\u003c\/strong\u003e Matches standard vacuum hose inner diameter for seamless inline integration without flow restriction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMesh Filtration:\u003c\/strong\u003e Stainless steel mesh traps contaminants down to 50 microns preventing solenoid blockages and valve failures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Brass Housing:\u003c\/strong\u003e Corrosion-resistant construction withstands engine bay heat oil exposure and high-pressure vacuum pulses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable Design:\u003c\/strong\u003e Easily removable cleaned with solvent and reinstalled to extend service life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine HKS Engineering:\u003c\/strong\u003e Precision-machined for exact fit in HKS EVC boost controllers SQV blow-off valves and twin power ignitions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInspect and clean filter every 10k miles or during boost system maintenance\u003c\/li\u003e\n\u003cli\u003ePair with HKS 4mm vacuum hose for complete system reliability\u003c\/li\u003e\n\u003cli\u003eCompact size fits tight engine bays without clearance issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eCut vacuum hose to length insert filter between hose sections using push-on fit\u003c\/li\u003e\n\u003cli\u003eCompatible with barbed fittings and small hose clamps for secure retention\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza\u003c\/td\u003e\n\u003ctd\u003eWRX STI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2009\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e350Z\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2002\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline\u003c\/td\u003e\n\u003ctd\u003eGT-R R34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1993-1998\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eSupra\u003c\/td\u003e\n\u003ctd\u003eTurbo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2007\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003eTurbo Models\u003c\/td\u003e\n\u003ctd\u003e4mm Vacuum Lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose HKS?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e40+ years developing JDM motorsport components for rally and drift champions\u003c\/li\u003e\n\u003cli\u003eEvery part tested on high-boost race engines for proven vacuum system durability\u003c\/li\u003e\n\u003cli\u003eMade in Japan with micron-level tolerances for leak-free performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit HKS SQV or EVC systems on my WRX STI?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes it threads directly inline on 4mm vacuum lines for SQV blow-off valves EVC boost controllers and similar HKS turbo setups on Subaru STI and other JDM cars\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is the filter made from?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Brass body with fine stainless steel mesh rated for 50-micron filtration resists corrosion and handles -30 to +250F temperatures\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is installation DIY and what warranty applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Simple push-fit install takes 5 minutes no special tools needed. HKS offers defect warranty through authorized distributors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e HKS retail box 2.5 x 1.5 x 1 inches protective foam insert\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":43793480417359,"sku":"HKS4599-RA017","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/hks-4mm-vaccum-filter-hks.jpg?v=1767417813","url":"https:\/\/www.blackopsautoworks.com\/products\/hks-4mm-vaccum-filter","provider":"Black Ops Auto Works","version":"1.0","type":"link"}