RacingDiffs BMW E30 188mm Billet diff cover
RacingDiffs BMW E30 188mm Billet diff cover, RacingDiffs part no. RD7008, RD7009.
Key Features
- Enhanced oil-flow design: Unique internal profile accelerates oil circulation, cutting temperature by ~15% on average (validated in simulation and real-world tests).
- Cooling-system ready: Three M16×1.5 ports support direct plumbing to an external oil cooler—ideal for endurance/extended track use.
- Forged strength: Base plate in 7075-T6 forged aluminum for stiffness and durability.
- Powerflex bushings included: NVH control and stability under load.
- Complete installation kit: Side mounts with secondary mount brackets, sealant rubber gasket, and all required bolts/fasteners.
- Customization option: Add a personal print—specify your request at checkout.
Technical Specs
| Spec | Value |
|---|---|
| Material & finish | Forged 7075-T6 aluminum base plate, precision-machined; supplied with premium hardware. |
| Cooling ports | Three ports, thread M16×1.5 , for feed/return/sensor or breather (as configured). |
| Bushings | Powerflex bushings included for vibration control and stability. |
| Included hardware | Side mounts & secondary mount brackets, sealant rubber gasket, bolts and fasteners. |
| Install notes | Clean mating surfaces; follow torque specs for mount and cover fasteners; verify clearance for cooler lines if used. Re-torque after first heat cycle. |
| Video | See our demonstration for testing methodology and performance gains (oil temp drop, flow behavior). |
Fitment
BMW E30 chassis (all body styles), 188mm differential size. Designed as a direct replacement diff cover; supports external cooler plumbing where desired.
+320i M20 +320is S14 +323i M20 +324td M21 +325e M20 +325i M20 +325ix M20 +M3 S14
Versions
| Color | Part number |
|---|---|
| Black | RD7008 |
| Silver | RD7009 |
Specifications
| Spec | Value |
|---|---|
| Brand | RacingDiffs |
| Part number | RD7008, RD7009 |
| Weight | 8,6 kg |
RacingDiffs
Founded in Belgium, RacingDiffs is a specialist developer of limited slip differential conversions and upgrades for popular rear-wheel-drive platforms. Their bolt-in LSD kits convert open differentials into performance units without a full housing swap — a cost-effective solution for track day and drift enthusiasts seeking better traction and balance.
Official page: racingdiffs.com
Official page: racingdiffs.com
RacingDiffs BMW E30 188mm Billet diff cover
845.79€
Excl. VAT: 699.00€
Tags: RS-RD-RD7008,