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BMW M Longer Output Flange Upgrade for Motorsport LSD Swap
RD3073
260,00€ - 290,00€
BMW Output Flange for Motorsport LSD Conversion
Genuine BMW output flange required when converting factory GKN Visco-Lock differentials to RacingDiffs Motorsport clutch-type LSD units.
This flange ensures both differential outputs use the correct length when installing the RacingDiffs asymmetrical Motorsport LSD design.
Why you need this flange
BMW’s factory GKN Visco-lock differential uses two different-length output flanges.
When upgrading to the RacingDiffs Motorsport clutch-type LSD, which uses an internal asymmetrical design, the shorter flange must be replaced with a longer one so both outputs match correctly.
This Genuine BMW flange provides the correct length and spline geometry required for the conversion.
Available Variants
| Variant | BMW Part Number | Bolt Circle | Typical Models* |
|---|---|---|---|
| M12 / 6×102 mm | 33131214068 | 6×102 mm PCD | E92 M3, E60 M5, E63/E64 M6 |
| M10 / 6×94 mm | 33131214087 | 6×94 mm PCD | E46 M3, Z4 M (E85/E86) |
Key Features
- Genuine BMW forged component ensuring perfect spline fit and proper heat treatment.
- Fully compatible with RacingDiffs Motorsport clutch-type LSD spline geometry.
- Supplied un-cut so it can be shortened precisely to match housing depth.
- Perfect companion for the RacingDiffs All-Solution LSD unit used in BMW M-cars.
Compatible BMW Models
- E46 M3 (S54) – requires part number 33131214087
- Z4 M Coupé / Roadster (S54) – requires part number 33131214087
- E92 M3 (S65) – requires part number 33131214068
- E60 M5 (S85) – requires part number 33131214068
- E63 / E64 M6 (S85) – requires part number 33131214068
