{"product_id":"h-r-sport-spring-kit-bmw-3-series-4-series-f30-f32","title":"H\u0026R Sport Spring Kit – BMW 3 Series \u0026 4 Series (F30\/F32, N20\/B48\/N55\/B58\/B46)","description":"\u003cstyle\u003e.sl-desc h2{font-size:1.15em;letter-spacing:.06em;text-transform:uppercase;border-bottom:2px solid #111;padding-bottom:6px;margin:1.6em 0 .7em}.sl-desc h3{font-size:1em;margin:1.2em 0 .4em}.sl-desc ul{margin:0 0 1em 1.2em}.sl-desc li{margin:.25em 0}.va-table{width:100%;border-collapse:collapse;margin:.5em 0 1em;font-size:.95em}.va-table th{text-align:left;padding:10px 8px;border-bottom:2px solid #333;white-space:nowrap}.va-table td{padding:8px;border-bottom:1px solid #e5e5e5;vertical-align:top}.sl-note{font-size:.9em;color:#555;margin:.4em 0 1em}\u003c\/style\u003e\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eH\u0026amp;R Sport Springs are the best-selling performance street spring for the BMW F30 3 Series and F32 4 Series RWD range, and they are the usual first step in suspension tuning. Replacing the factory coils lowers the car's center of gravity and cuts body roll, which sharpens handling and chassis balance while giving the car an aggressive but still driveway-friendly stance. H\u0026amp;R fits this kit whether or not the car has factory sport suspension.\u003c\/p\u003e\n\u003cp\u003eThe progressive spring rates are increased roughly 10–20% over stock. That progression is what lets the kit stay comfortable and composed in normal driving and then firm up for proper body control when the road gets twisty.\u003c\/p\u003e\n\u003cp\u003eH\u0026amp;R manufactures every spring in-house from a special 54SiCr6 spring steel and shot-peens it to increase service life by more than 200%, so the set will not settle or sag the way lesser coil springs do. Each spring is 100% tested before it leaves H\u0026amp;R's ISO 9001-certified production facility in Germany, and the company holds both TÜV and ISO 9001 quality certification.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFits cars with or without factory sport suspension; lowering amount varies by suspension type\u003c\/li\u003e\n\u003cli\u003eProgressive spring rates, increased approximately 10–20% over stock\u003c\/li\u003e\n\u003cli\u003eSpring material: 54SiCr6 alloy spring steel, cold-wound\u003c\/li\u003e\n\u003cli\u003eShot-peened to increase service life by more than 200%\u003c\/li\u003e\n\u003cli\u003eWill not settle or sag in service\u003c\/li\u003e\n\u003cli\u003eEvery spring 100% tested before leaving H\u0026amp;R's ISO 9001-certified production facility in Germany\u003c\/li\u003e\n\u003cli\u003eQuality certification: TÜV and ISO 9001\u003c\/li\u003e\n\u003cli\u003eWarranty: H\u0026amp;R covers springs for the duration of the original purchaser's ownership of the vehicle the springs are installed on\u003c\/li\u003e\n\u003cli\u003eRear-wheel-drive only — not for xDrive-equipped F30\/F32 cars\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eComplete H\u0026amp;R spring set (4 springs) as supplied by H\u0026amp;R Special Springs.\u003c\/li\u003e\n\u003cli\u003eSee the fitting instructions supplied in the box for the full bill of materials.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003ch3\u003eAdditional Parts Required\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm rear-wheel drive.\u003c\/strong\u003e This kit is for RWD F30\/F32 cars only. xDrive versions require a different H\u0026amp;R part number.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm factory sport suspension.\u003c\/strong\u003e H\u0026amp;R lists this kit for cars with or without factory sport suspension, but final ride height differs between the two — confirm which your car has before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring compressor.\u003c\/strong\u003e A spring-only kit requires the struts to be disassembled, which needs a proper coil-spring compressor. Installer-supplied.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-wheel alignment.\u003c\/strong\u003e H\u0026amp;R requires the alignment to be checked and reset any time ride height is changed. Budget for this before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional installation.\u003c\/strong\u003e H\u0026amp;R states its springs and suspensions should be installed by professional suspension mechanics only. Improper installation voids the H\u0026amp;R warranty.\u003c\/li\u003e\n\u003cli\u003eOptional: matched sport-valved dampers, since a lowered car holds up better on a damper valved for the shorter spring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/hr-springs-technical-installation-information.pdf?v=1787168924\" target=\"_blank\" rel=\"noopener\"\u003eH\u0026amp;R Technical Information \u0026amp; Installation Guide (PDF)\u003c\/a\u003e — spring identification and markings, dead and tender coils, ride-height measurement, bump-stop trim chart by part number, and alignment requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/hr-springs-warranty-and-claims.pdf?v=1787169177\" target=\"_blank\" rel=\"noopener\"\u003eH\u0026amp;R Warranties \u0026amp; Claims (PDF)\u003c\/a\u003e — official H\u0026amp;R warranty terms, coverage periods and claim procedure.\u003c\/li\u003e\n\u003cli\u003eVehicle-specific fitting instructions are supplied in the box with the spring set. H\u0026amp;R does not publish a separate per-application installation PDF for this part.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis kit fits both the F30 3 Series sedan and the F32 4 Series coupe on the shared platform — confirmed against three independent vendor fitment charts (Turner Motorsport, ECS Tuning, Bimmerworld), all of which list both chassis under this single part number.\u003c\/li\u003e\n\u003cli\u003eLowering figures are H\u0026amp;R factory approximations and vary with suspension type, options and starting ride height. Confirm exact fitment with Speed Logic before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003e28878-2\u003c\/strong\u003e — H\u0026amp;R Sport Spring set, BMW F30\/F32\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable class=\"va-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e320i Sedan\u003c\/td\u003e\n\u003ctd\u003eF30\u003c\/td\u003e\n\u003ctd\u003eN20 2.0L Turbo I4\u003c\/td\u003e\n\u003ctd\u003e2012–2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e328i Sedan\u003c\/td\u003e\n\u003ctd\u003eF30\u003c\/td\u003e\n\u003ctd\u003eN20 2.0L Turbo I4\u003c\/td\u003e\n\u003ctd\u003e2012–2016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e330i Sedan\u003c\/td\u003e\n\u003ctd\u003eF30\u003c\/td\u003e\n\u003ctd\u003eB48 2.0L Turbo I4\u003c\/td\u003e\n\u003ctd\u003e2016–2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e335i Sedan\u003c\/td\u003e\n\u003ctd\u003eF30\u003c\/td\u003e\n\u003ctd\u003eN55 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2012–2015\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e340i Sedan\u003c\/td\u003e\n\u003ctd\u003eF30\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2016–2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e428i Coupe\u003c\/td\u003e\n\u003ctd\u003eF32\u003c\/td\u003e\n\u003ctd\u003eN20 2.0L Turbo I4\u003c\/td\u003e\n\u003ctd\u003e2014–2016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e430i Coupe\u003c\/td\u003e\n\u003ctd\u003eF32\u003c\/td\u003e\n\u003ctd\u003eB46 2.0L Turbo I4\u003c\/td\u003e\n\u003ctd\u003e2017–2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e435i Coupe\u003c\/td\u003e\n\u003ctd\u003eF32\u003c\/td\u003e\n\u003ctd\u003eN55 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2014–2016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e440i Coupe\u003c\/td\u003e\n\u003ctd\u003eF32\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2017–2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"H\u0026R Springs","offers":[{"title":"Default Title","offer_id":52599828807960,"sku":"28878-2","price":330.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/SportSprings_6ae136a6-3182-4fa9-b217-879257585b51.jpg?v=1788307089","url":"https:\/\/speedlogicauto.com\/products\/h-r-sport-spring-kit-bmw-3-series-4-series-f30-f32","provider":"SPEED LOGIC","version":"1.0","type":"link"}