{"product_id":"h-r-street-performance-coilover-bmw-m340i-rwd-sedan-g20-b58","title":"H\u0026R Street Performance Coilover – BMW M340i RWD Sedan (G20, B58)","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\n\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe H\u0026amp;R Street Performance Coil Over pairs a custom-valved damper with a progressive-rate H\u0026amp;R spring, so damping and spring rate are matched to each other rather than mixed and matched. This kit is built for the rear-wheel-drive G20 M340i sedan without factory adaptive suspension.\u003c\/p\u003e\n\u003cp\u003eA fully threaded shock body lets ride height be set continuously rather than in fixed steps, so the stance can be fine-tuned corner by corner while keeping a comfortable street ride.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApprox. front lowering range: 1.2 – 2.0\"\u003c\/li\u003e\n\u003cli\u003eApprox. rear lowering range: 1.0 – 2.0\"\u003c\/li\u003e\n\u003cli\u003eDamper: custom-valved mono-tube gas shock, matched to a progressive-rate H\u0026amp;R spring\u003c\/li\u003e\n\u003cli\u003eRide height: fully threaded shock body, continuously adjustable\u003c\/li\u003e\n\u003cli\u003eSprings manufactured in-house by H\u0026amp;R from 54SiCr6 alloy spring steel and shot-peened\u003c\/li\u003e\n\u003cli\u003eRear-wheel-drive application only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eComplete H\u0026amp;R Street Performance Coil Over kit 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\u003eSuspension configuration check\u003c\/strong\u003e — confirm your car does \u003cstrong\u003enot\u003c\/strong\u003e have factory Adaptive Suspension before ordering. This kit is for cars without adaptive suspension (sport suspension included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-wheel alignment\u003c\/strong\u003e — H\u0026amp;R requires the wheel alignment to be checked and reset any time vehicle ride height is changed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional installation\u003c\/strong\u003e — H\u0026amp;R states that its suspensions should be installed by professional suspension mechanics only. Improper installation voids the H\u0026amp;R warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel and tire clearance check\u003c\/strong\u003e — verify clearance at the fender, strut and inner arch at full lock and full compression.\u003c\/li\u003e\n\u003cli\u003eInstaller-supplied tools: torque wrench and standard BMW suspension service tools.\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\"\u003eH\u0026amp;R Springs Technical \u0026amp; Installation Information (PDF)\u003c\/a\u003e — spring identification, ride-height measurement 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\"\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 coil over kit. 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\u003eFor cars without adaptive suspension (sport suspension included).\u003c\/li\u003e\n\u003cli\u003exDrive cars use \u003ca href=\"\/products\/h-r-street-performance-coilover-bmw-330i-xdrive-m340i-xdrive-g20-430i-xdrive-m440i-m440i-xdrive-g22\"\u003e28658-5\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eConfirm your exact model, drivetrain and suspension type with \u003ca href=\"\/pages\/contact-us\"\u003eSpeed Logic\u003c\/a\u003e before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e\u003cstrong\u003e28658-2\u003c\/strong\u003e\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\u003eM340i Sedan (RWD)\u003c\/td\u003e\n\u003ctd\u003eG20\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2020+\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":52946943475992,"sku":"28658-2","price":1692.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/b69791de62fb1103652316d7c00fb88bL.jpg?v=1792443934","url":"https:\/\/speedlogicauto.com\/products\/h-r-street-performance-coilover-bmw-m340i-rwd-sedan-g20-b58","provider":"SPEED LOGIC","version":"1.0","type":"link"}