{"title":"The Collab Series","description":null,"products":[{"product_id":"esse-werks-differential-ring-gear-bolt-kit","title":"Esse Werks Differential Ring Gear Bolt Kit — BMW\/MINI F","description":"\u003cp\u003e\u003cstrong\u003eEsse Werks differential ring gear bolt kit, manufactured by ARP to ARP2000 spec, for the BMW\/MINI transverse-platform differential.\u003c\/strong\u003e Replaces the OEM torque-to-yield bolts BMW specifies for one-time use only — bolts that are not safe to reuse on reassembly.\u003c\/p\u003e\n\n\u003ch3\u003eWhy TTY bolts fail at diff rebuilds\u003c\/h3\u003e\n\u003cp\u003eThe OEM ring gear bolts are torque-to-yield by design. They're stretched past their elastic limit on initial torque-down, which creates even clamping force across the ring gear face but consumes the bolt's ability to stretch a second time. Reuse them on an LSD install or a service teardown and they either lose clamp force — gear face slips, hammer wear starts on the ring — or they break in the head during the second torque application. BMW's service manual is explicit: replace TTY bolts on every reassembly. ARP2000 is the more durable answer.\u003c\/p\u003e\n\n\u003ch3\u003eWhat ARP2000 brings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTensile strength ~220,000 psi\u003c\/strong\u003e — well above the OEM TTY bolt's working range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable\u003c\/strong\u003e — proper torque-to-spec with ARP's ULTRA-TORQUE lubricant; no stretch-to-yield needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolds clamp under thermal cycling\u003c\/strong\u003e — track-temperature differential rebuilds stay clamped where OEM bolts have been observed to back off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame thread pitch and head geometry\u003c\/strong\u003e as the OEM bolt — no tooling changes at install\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e10 × ARP2000 ring gear \/ diff cover bolts, M10×1.0 thread\u003c\/li\u003e\n\u003cli\u003eARP ULTRA-TORQUE assembly lubricant\u003c\/li\u003e\n\u003cli\u003eTorque sequence and spec sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW and MINI transverse-platform differential — found across the F-series UKL2 chassis lineup:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMINI F-series — F54 Clubman, F55, F56, F57, F60 Countryman\u003c\/li\u003e\n\u003cli\u003eBMW F-series — F39 X2, F45 \/ F46 2-series Active \u0026amp; Gran Tourer (EU), F48 X1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eConfirm OEM bolt part numbers against your specific differential before ordering.\u003c\/strong\u003e BMW issued running revisions to the OEM TTY bolts mid-platform. This ARP2000 kit covers both revisions. If you're on a G-chassis (longitudinal RWD \/ xDrive) BMW with a different differential casting, this kit does not fit — contact sales@essewerks.com and we'll source the right ARP kit for your application.\u003c\/p\u003e\n\n\u003ch3\u003eInstall\u003c\/h3\u003e\n\u003cp\u003e0.5 hrs assuming the differential is already out of the car — LSD install, gear set change, service teardown. Use the included ARP ULTRA-TORQUE lubricant on threads and under the bolt head, follow ARP's torque sequence, torque in three passes per the included spec sheet.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this kit does not include\u003c\/h3\u003e\n\u003cp\u003eBolts only. A complete diff reassembly typically also requires pinion crush sleeve, pinion seal, axle seals, and ring-gear-to-carrier shims — all sourced separately. Esse Werks can quote the full hardware list at intake.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eARP × Esse Werks.\u003c\/strong\u003e Manufactured by ARP (Automotive Racing Products, Ventura, California — Made in the USA). Esse Werks spec, ARP build, ARP manufacturer warranty pass-through.\u003c\/p\u003e","brand":"ARP × Esse Werks","offers":[{"title":"Default Title","offer_id":43280682418237,"sku":"EW-DRV-ARPBOLTS-RING","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/f56_flywheel_bolts_BLK01.png?v=1781742738"},{"product_id":"dr06-m-forged-wheel","title":"DR06-M — Esse Werks × DR Forged Collaboration | Signature 2-Piece Modular","description":"\u003cp\u003e\u003cstrong\u003eDR06-M — the Esse Werks Signature 2-Piece Modular, built with DR Forged.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same signature face as our monoblock, in modular form. The DR06 began as an in-house design exercise for our E53 X5 shop truck on the Race Support series; after many iterations we brought it to DR Forged, who took on the challenge, and a few revisions later we had a wheel we were all proud to bring to market — drawn to look its best on the E53 and the modern-classic BMWs.\u003c\/p\u003e\n\u003ch3\u003eThe design\u003c\/h3\u003e\n\u003cp\u003eOur face on a two-piece modular barrel — our design, DR Forged's craft. BMW proportions first, finished in-house, built to order only.\u003c\/p\u003e\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cp\u003eA forged 6061-T6 center, \u003cstrong\u003e6-axis CNC-machined from a single billet\u003c\/strong\u003e, bolted to a separate barrel so width and lip are dialed exactly to your spec. Set to BMW M-Sport brake clearance without spacers. Per-size weight 22–29 lb depending on diameter and width.\u003c\/p\u003e\n\u003ch3\u003eHow it's built\u003c\/h3\u003e\n\u003cp\u003eMade to your BMW bolt pattern — 5x120 standard, other European patterns to order — with width and offset CNC-machined to your spec. 6–8 week lead time; every wheel is built to order. Staggered front\/rear is the norm: configure the front, add to cart, then change width and offset and add the rear.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003e40 finishes at no upcharge, applied in-house: gloss and matte Liquid Smoke, Transparent Gold, Transparent Charcoal, and more — custom colors quoted to spec. Available diameters 18\"–22\". The spec strip is your build sheet.\u003c\/p\u003e","brand":"DR Forged × Esse Werks","offers":[{"title":"18\"","offer_id":43280683728957,"sku":"EW-WHL-DR06M-18","price":1399.0,"currency_code":"USD","in_stock":true},{"title":"19\"","offer_id":43280683761725,"sku":"EW-WHL-DR06M-19","price":1499.0,"currency_code":"USD","in_stock":true},{"title":"20\"","offer_id":43280683794493,"sku":"EW-WHL-DR06M-20","price":1599.0,"currency_code":"USD","in_stock":true},{"title":"21\"","offer_id":43280683827261,"sku":"EW-WHL-DR06M-21","price":1699.0,"currency_code":"USD","in_stock":true},{"title":"22\"","offer_id":43280683860029,"sku":"EW-WHL-DR06M-22","price":1799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/untitled.461.png?v=1781741622"},{"product_id":"esse-werks-hydraulic-throwout-bearing","title":"Hydraulic Throwout Bearing — B48 Transverse | Clutchmasters × Esse Werks","description":"\u003cp\u003e\u003cstrong\u003eA first of its kind — the only adjustable hydraulic throwout bearing built for the factory Getrag GS6-17BG transverse 6-speed.\u003c\/strong\u003e \u003cstrong\u003eFor twin-plate clutches only\u003c\/strong\u003e, and natively designed around the Clutchmasters \u003cstrong\u003eCM 850 Strapped DLX\u003c\/strong\u003e twin-plate.\u003c\/p\u003e\n\u003cp\u003eDeveloped by Clutchmasters and Esse Werks on the shop F56 race car, it replaces the entire OEM mechanical linkage — throwout bearing, slave cylinder, clutch fork, pivot ball, and the hard lines feeding all of it. The OEM stack is fine for stock-power street duty; under sustained track load on a Stage 2 or Stage 3 calibration, the system-level flex shows up as inconsistent pedal feel, late engagement, and eventual fork or pivot failure.\u003c\/p\u003e\n\u003ch3\u003eTwin-plate clutches only\u003c\/h3\u003e\n\u003cp\u003eThis conversion is engineered for \u003cstrong\u003etwin-plate (twin-disc) clutches — not single-plate\u003c\/strong\u003e. It was natively designed to work with the Clutchmasters \u003cstrong\u003eCM 850 Strapped DLX\u003c\/strong\u003e twin-plate, and configures for other twin-plate clutches via the matched bearing face below.\u003c\/p\u003e\n\u003ch3\u003eWhich clutch are you running?\u003c\/h3\u003e\n\u003cp\u003ePick your twin-plate clutch above — we ship the bearing with the contact face matched to it, so you don't have to know face shapes. \u003cstrong\u003eIt's a required choice with nothing pre-selected\u003c\/strong\u003e, so identify the clutch you intend to run; the wrong face won't release properly. (Shape noted in italics for those who track it.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSwitching clutches later?\u003c\/strong\u003e You don't rebuy the assembly — just order the matching \u003ca href=\"\/products\/esse-werks-htob-bearing-face\"\u003eEsse Werks HTOB Bearing \u0026amp; Face\u003c\/a\u003e ($195) and fit it to your HTOB. It's quick.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutchmasters\u003c\/strong\u003e — \u003cem\u003epeaked face\u003c\/em\u003e — a rounded peak machined into the center, built for the \u003cstrong\u003eCM 850 Strapped DLX\u003c\/strong\u003e twin-plate. A matched pair, not adapted to fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTilton\u003c\/strong\u003e — \u003cem\u003eflat or radius\u003c\/em\u003e, matched to your Tilton twin-plate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPEC\u003c\/strong\u003e — \u003cem\u003ematched to your clutch at intake\u003c\/em\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther \/ not sure\u003c\/strong\u003e — \u003cem\u003ewe confirm the correct face before it ships\u003c\/em\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat this fits — transmission, not chassis\u003c\/h3\u003e\n\u003cp\u003eThe qualifier is the gearbox, not the car. This unit fits the \u003cstrong\u003eGetrag GS6-17BG 6-speed transverse manual transmission\u003c\/strong\u003e as fitted from the factory to MINI F-series Cooper S \u003cstrong\u003eand JCW\u003c\/strong\u003e manuals — we've personally fit both the Cooper S and JCW boxes. If your VIN shows that transmission, this part fits. The chassis list below identifies where the Getrag GS6-17BG came from the factory:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF56 Cooper S and JCW 3-door hatch — B46\/B48 with the GS6-17BG manual\u003c\/li\u003e\n\u003cli\u003eF55 Cooper S 5-door hatch — B46\/B48 with the GS6-17BG manual\u003c\/li\u003e\n\u003cli\u003eF57 Cooper S \/ JCW Cabrio — B46\/B48 with the GS6-17BG manual\u003c\/li\u003e\n\u003cli\u003eF54 Clubman Cooper S — B46\/B48 with the GS6-17BG manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e the Aisin or ZF automatic transmissions, DCT transmissions, or longitudinal BMW Getrag boxes (different family entirely — GS6-37BZ, GS6-53BZ). Confirm transmission type at checkout — your VIN tells the story.\u003c\/p\u003e\n\u003ch3\u003ePivot-arm throwout bearing vs hydraulic throwout bearing\u003c\/h3\u003e\n\u003cp\u003eThe OEM transverse clutch actuates through a chain of mechanical components: master cylinder → hard line → slave cylinder → clutch fork pivoting on a ball → throwout bearing → clutch fingers. Every component in that chain contributes flex, lash, and wear. The pivot ball wears. The fork flexes. The slave seal weeps. By lap 30 the pedal engages in a different place than it did at lap 1.\u003c\/p\u003e\n\u003cp\u003eThe hydraulic conversion eliminates the mechanical chain entirely. The slave cylinder is integrated into the throwout bearing itself, mounted concentrically around the transmission input shaft. Fluid pressure pushes the bearing directly against the clutch fingers — no fork, no pivot, no fork-to-bearing contact point, no cumulative wear chain. Pedal feel at the end of a session matches pedal feel at the start.\u003c\/p\u003e\n\u003ch3\u003eWhat Ford already figured out\u003c\/h3\u003e\n\u003cp\u003eThis isn't a novel architecture. Ford fitted a factory Concentric Slave Cylinder — the OEM term for a hydraulic throwout bearing — to the Mk3 Focus ST and the Mk3 Focus RS, both of which use a different Getrag 6-speed (the MMT6, not the GS6-17BG). Ford engineers reached the conclusion we did: mechanical fork actuation isn't durable under sustained high-clamp load. They picked the hydraulic path from the factory. BMW and MINI picked a different cost\/durability trade-off and shipped the GS6-17BG with the mechanical pivot system. We chose Ford's answer for the cars that didn't get it from the factory.\u003c\/p\u003e\n\u003ch3\u003eWhy adjustability matters\u003c\/h3\u003e\n\u003cp\u003eA fixed-position throwout bearing has one engagement point. Any change in clutch finger height — from a new disc, from disc wear, from a different pressure-plate spec — moves engagement away from where the driver expects it. Clutchmasters built this unit with an adjustable air gap, set with the included shims, so the bearing-to-finger preload can be dialed in for the twin-plate clutch you run and re-dialed as the disc wears.\u003c\/p\u003e\n\u003ch3\u003eF56 race car development\u003c\/h3\u003e\n\u003cp\u003eThis wasn't engineered off a CAD model and shipped to test. Clutchmasters and Esse Werks developed the assembly on the shop's F56 race car — same factory Getrag GS6-17BG every customer car runs, real heat cycles, real lap data. Iterations validated under load on the Getrag bell housing, not on a bench fixture.\u003c\/p\u003e\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe Clutchmasters × Esse Werks hydraulic throwout bearing, with your selected (matched) face\u003c\/li\u003e\n\u003cli\u003eStainless-steel braided line and fittings\u003c\/li\u003e\n\u003cli\u003eShims (to set the air gap)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eClutch compatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTwin-plate clutches only.\u003c\/strong\u003e The native pairing is the \u003cstrong\u003eCM 850 Strapped DLX twin-plate\u003c\/strong\u003e (our peaked face was built for it); Tilton, SPEC, or another twin-plate brand are matched too — choose Other and we'll match the face. Actuation force is matched to OEM clamping pressure; very high-clamp competition clutches may want a master-cylinder upgrade, which we can recommend at intake.\u003c\/p\u003e\n\u003ch3\u003eWhen you need it\u003c\/h3\u003e\n\u003cp\u003eTrack-day cars on Stage 2+ calibration. Cars driven hard in stop-and-go with frequent clutch use. Builds where the original fork or pivot has already failed and you're replacing parts anyway — the labor to drop the transmission is the same either way, and the system-level upgrade saves a second tear-down later.\u003c\/p\u003e\n\u003ch3\u003eInstall\u003c\/h3\u003e\n\u003cp\u003eTransmission removal required. Coordinate with a shop comfortable with MINI transverse drivetrain. Esse Werks installs in-house at the Boca Raton shop on appointment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade in the USA\u003c\/strong\u003e by Clutchmasters (Rialto, California).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e Manufacturer warranty on the Clutchmasters hydraulic assembly. Esse Werks supports installation troubleshooting through sales@essewerks.com.\u003c\/p\u003e\n\u003cdiv style=\"border:1px solid #d0d0d0;border-radius:8px;padding:14px 16px;margin-top:16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;\"\u003e\u003cstrong\u003eWere you looking for…\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eJust the replacement release bearing + matched face? → \u003ca href=\"\/products\/esse-werks-htob-bearing-face\"\u003eEsse Werks HTOB Bearing \u0026amp; Face\u003c\/a\u003e ($195). \u003cem\u003eThis page is the complete HTOB assembly.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Clutchmasters × Esse Werks","offers":[{"title":"Clutchmasters","offer_id":43280684220477,"sku":"EW-CM-HTOB-CM","price":695.0,"currency_code":"USD","in_stock":true},{"title":"Tilton","offer_id":43280684253245,"sku":"EW-CM-HTOB-TILTON","price":695.0,"currency_code":"USD","in_stock":true},{"title":"SPEC","offer_id":43280684286013,"sku":"EW-CM-HTOB-SPEC","price":695.0,"currency_code":"USD","in_stock":true},{"title":"Other","offer_id":43280684318781,"sku":"EW-CM-HTOB-OTHER","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/ew_htob_BLK01.png?v=1781742738"},{"product_id":"dr06-forged-wheel","title":"DR06 Forged Wheel — Esse Werks × DR Forged Collaboration | Signature Monoblock","description":"\u003cp\u003e\u003cstrong\u003eDR06 — the Esse Werks Signature Monoblock, built with DR Forged.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe DR06 started as an in-house design exercise. We were building our E53 X5 shop truck for the Race Support series and wanted a face that didn't exist yet — so we kept drawing and revising until it was right. We took the concept to DR Forged, they accepted the challenge, and after a few more rounds together we had a wheel all of us were proud to put into production — drawn to look its best on the E53 and across the modern-classic BMWs.\u003c\/p\u003e\n\u003ch3\u003eThe design\u003c\/h3\u003e\n\u003cp\u003eOur face, DR Forged's craft — designed around BMW proportions first, finished in-house. Built to order only; every set is machined and coated for the specific car.\u003c\/p\u003e\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cp\u003eA one-piece monoblock, \u003cstrong\u003e6-axis CNC-machined from a single forged 6061-T6 aluminum billet\u003c\/strong\u003e — the lightest, stiffest way to build a wheel this size. Set to BMW M-Sport brake clearance without spacers. Per-size weight 18–26 lb depending on diameter and width.\u003c\/p\u003e\n\u003ch3\u003eHow it's built\u003c\/h3\u003e\n\u003cp\u003eMade to your BMW bolt pattern — 5x120 standard, other European patterns to order — with width and offset CNC-machined to your spec. 6–8 week lead time; every wheel is built to order. Staggered front\/rear is the norm: configure the front, add to cart, then change width and offset and add the rear.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003e40 finishes at no upcharge, applied in-house: gloss and matte Liquid Smoke, Transparent Gold, Transparent Charcoal, and more — custom colors quoted to spec. Available diameters 17\"–22\". The spec strip is your build sheet.\u003c\/p\u003e","brand":"DR Forged × Esse Werks","offers":[{"title":"17\"","offer_id":43280696803389,"sku":"EW-WHL-DR06-17","price":1099.0,"currency_code":"USD","in_stock":true},{"title":"18\"","offer_id":43280696836157,"sku":"EW-WHL-DR06-18","price":1199.0,"currency_code":"USD","in_stock":true},{"title":"19\"","offer_id":43280696868925,"sku":"EW-WHL-DR06-19","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"20\"","offer_id":43280696901693,"sku":"EW-WHL-DR06-20","price":1399.0,"currency_code":"USD","in_stock":true},{"title":"21\"","offer_id":43280696934461,"sku":"EW-WHL-DR06-21","price":1499.0,"currency_code":"USD","in_stock":true},{"title":"22\"","offer_id":43280696967229,"sku":"EW-WHL-DR06-22","price":1599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/untitled.60.png?v=1781741622"}],"url":"https:\/\/essewerks.com\/collections\/collabs.oembed","provider":"Esse Werks","version":"1.0","type":"link"}