{"product_id":"superpro-2015-subaru-wrx-limited-front-lower-inner-duroball-control-arm-bushing-kit-std-alignment","title":"SuperPro 2015 Subaru WRX Limited Front Lower Inner DuroBall Control Arm Bushing Kit (Std. Alignment)","description":"\u003cp\u003eThe SuperPro DURO4425K front lower inner control arm bushing kit brings DuroBall hybrid technology to 2015-2021 Subaru WRX and WRX STI. Instead of traditional polyurethane, DURO4425K uses a metal-shell spherical bearing combined with SuperPro's polymer liner, providing the compliance needed for daily driving while eliminating the deflection common in worn rubber bushings. This standard-alignment design drops directly into OEM control arms with no geometry changes required.\u003c\/p\u003e\n\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003eDURO4425K fits the following vehicles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2015-2021 Subaru WRX\u003c\/li\u003e\n\u003cli\u003e2015-2021 Subaru WRX STI\u003c\/li\u003e\n\u003cli\u003e2015 Subaru WRX STI Launch Edition\u003c\/li\u003e\n\u003cli\u003e2016 Subaru WRX STI Series.HyperBlue\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eDURO4425K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eFront Lower Control Arm, Inner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnology\u003c\/td\u003e\n\u003ctd\u003eDuroBall Metal-Poly Hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlignment Change\u003c\/td\u003e\n\u003ctd\u003eStandard (no geometry change)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSteel shell, SuperPro polymer liner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProp 65\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e9317745771678\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDuroBall technology combines spherical metal bearing with polymer liner for precise suspension control\u003c\/li\u003e\n\u003cli\u003eEliminates front-end vagueness caused by worn OEM rubber inner control arm bushings\u003c\/li\u003e\n\u003cli\u003eStandard alignment design preserves factory caster and camber settings\u003c\/li\u003e\n\u003cli\u003eMore compliant than solid spherical bearings, reducing NVH transfer to the cabin\u003c\/li\u003e\n\u003cli\u003eDirect press-in fit for OEM WRX\/WRX STI front lower control arm\u003c\/li\u003e\n\u003cli\u003eDesigned and tested by SuperPro for VA-chassis Subaru applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstalling DURO4425K requires pressing out the OEM bushings from the lower control arm and pressing the DuroBall units in. A hydraulic press and appropriate mandrel set are required. Ensure arm is clean and free of burrs before pressing. Torque all suspension hardware with the vehicle at ride height. A front alignment check is recommended after installation although geometry does not change with the standard-alignment design.\u003c\/p\u003e\n\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat makes DuroBall different from standard polyurethane?\u003c\/strong\u003e DURO4425K uses a metal spherical shell with a SuperPro polymer liner, which allows more rotational freedom than solid poly while still providing far less deflection than worn rubber. The result is sharper turn-in and more predictable cornering response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill DURO4425K change my alignment settings?\u003c\/strong\u003e No. DURO4425K is the standard-alignment version and replaces the OEM bushing without shifting camber or caster. You should still verify alignment after any suspension work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this compatible with lowered WRX\/STI builds?\u003c\/strong\u003e Yes. DURO4425K is designed for the VA-chassis 2015-2021 WRX and STI and works at lowered ride heights within normal range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes the Magnuson-Moss Warranty Act apply to suspension bushing upgrades?\u003c\/strong\u003e Yes. Under the Magnuson-Moss Warranty Act, your vehicle manufacturer cannot void your chassis or suspension warranty solely because you installed aftermarket bushings such as DURO4425K, as long as the installation was performed correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs a professional alignment required after installing DURO4425K?\u003c\/strong\u003e A front alignment check is recommended after any control arm bushing replacement to confirm all settings are within spec, even though DURO4425K does not alter geometry by design.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Superpro","offers":[{"title":"Default Title","offer_id":40486478676047,"sku":"SPRDURO4425K","price":289.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/d63046166ec3d6690c872109b27562d0.jpg?v=1755544642","url":"https:\/\/www.blackopsautoworks.com\/products\/superpro-2015-subaru-wrx-limited-front-lower-inner-duroball-control-arm-bushing-kit-std-alignment","provider":"Black Ops Auto Works","version":"1.0","type":"link"}