{"title":"BMW M4 F83 Clutch \u0026 Drivetrain","description":null,"products":[{"product_id":"2014-2018-bmw-m4-f80-f82-f83-1200hp-rear-axle-bar-cv-internal-upgrade-only","title":"Driveshaft Shop 1200HP Rear Axle Bar\/CV Upgrade – BMW M4 (F80\/F82\/F83)","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\u003eThe rear axle bar and inner CV upgrade for the 2014+ F80-F83 M3\/M4. The Driveshaft Shop developed a set of 300M axle bars along with chromoly inner and outer CV internal components. Using proprietary 1.25″ diameter high-grade 300M bars (stock axle bars are 28 spline), a custom chromoly CV cage and race set, these axles become practically indestructible. The factory outer CV housing is made from a very strong material, so this upgrade is more than enough to handle the 1200 HP rating offered.\u003c\/p\u003e\n\u003cp\u003eThis is a send-in service on your own factory axles. DSS tempers and shot-peens the OEM outer and inner housings, installs factory-style metal boot covers on the outer CV (double o-ring sealed), and installs the new chromoly cage\/race internals along with 30-spline bars.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProprietary 1.25″ diameter high-grade 300M axle bars\u003c\/li\u003e\n\u003cli\u003e30-spline bars (stock axle bars are 28 spline)\u003c\/li\u003e\n\u003cli\u003eCustom chromoly CV cage and race set\u003c\/li\u003e\n\u003cli\u003eChromoly inner and outer CV internal components\u003c\/li\u003e\n\u003cli\u003eFactory outer CV housings retained, tempered and shot-peened\u003c\/li\u003e\n\u003cli\u003eFactory-style metal boot covers on the outer CV, double o-ring sealed\u003c\/li\u003e\n\u003cli\u003eRated to 1200 HP\u003c\/li\u003e\n\u003cli\u003eWarranty: 1 year (The Driveshaft Shop)\u003c\/li\u003e\n\u003cli\u003eBuilt to order on your cores — call for current lead times\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eUpgrade service only: 300M axle bars, chromoly inner\/outer CV internals, cage and race set and metal boot covers installed into your supplied OEM axle housings. Your factory axles are required as cores.\u003c\/li\u003e\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\u003eYour factory OEM axles.\u003c\/strong\u003e This is an upgrade-only service — you must send in your own axles for DSS to assemble the set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMA number.\u003c\/strong\u003e Call for lead times and an RMA number before shipping your axles in.\u003c\/li\u003e\n\u003cli\u003eSingle-use axle nuts and any damaged OEM boots or hardware should be replaced at reassembly.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eThe Driveshaft Shop does not publish a downloadable installation guide for this upgrade. Contact Speed Logic or The Driveshaft Shop directly for RMA, lead time and torque guidance.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e**You must send in your axles to have this process done, please call for lead times and an RMA number before sending them in.**\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eUpgrade service only — no new axle housings are supplied. Confirm model year fitment and current lead times with Speed Logic before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eM4R1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDSS SKU: 510415\u003c\/li\u003e\n\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\u003eM3 Sedan\u003c\/td\u003e\n\u003ctd\u003eF80\u003c\/td\u003e\n\u003ctd\u003eS55 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2014–2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 Coupe\u003c\/td\u003e\n\u003ctd\u003eF82\u003c\/td\u003e\n\u003ctd\u003eS55 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2014–2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 Convertible\u003c\/td\u003e\n\u003ctd\u003eF83\u003c\/td\u003e\n\u003ctd\u003eS55 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2014–2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Driveshaft Shop","offers":[{"title":"Default Title","offer_id":48983129850136,"sku":"","price":1528.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/BMW-M4M5M6-Upgrade-Only_1.png?v=1724270573"}],"url":"https:\/\/speedlogicauto.com\/collections\/bmw-m4-f83-clutch-drivetrain.oembed","provider":"SPEED LOGIC","version":"1.0","type":"link"}