OS Giken BM531-HA is a SuperLock limited-slip differential for the BMW 215LW large differential case. The manufacturer lists the E92 335i with N54 and the early 135i manual-transmission application, subject to differential configuration.

Designed for the 215LW three-bolt type. Later 215LW spline-type installations require specialist removal and machining of the welded ring gear. Confirm the actual case, ring-gear attachment and drivetrain before ordering; the model name alone does not establish fitment.

Standard 1.5-way configuration with 25/35 ramps
20 plates
Progressive clutch-type locking

This is the LSD unit, not a complete differential housing assembly. Installation and setup require the vehicle service procedure and a qualified differential specialist.

FR SPORT

BMW 215LW Large-Case SuperLock LSD, OS Giken BM531-HA

SKU 00UUH

Regular price: $1,850.00

OS Giken BM531-HA is a SuperLock limited-slip differential for the BMW 215LW large differential case. The manufacturer lists the E92 335i with N54 and the early 135i manual-transmission application, subject to differential configuration.

Designed for the 215LW three-bolt type. Later 215LW spline-type installations require specialist removal and machining of the welded ring gear. Confirm the actual case, ring-gear attachment and drivetrain before ordering; the model name alone does not establish fitment.

Standard 1.5-way configuration with 25/35 ramps
20 plates
Progressive clutch-type locking

This is the LSD unit, not a complete differential housing assembly. Installation and setup require the vehicle service procedure and a qualified differential specialist.

Regular price: $1,850.00

Quantity

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Vendor: Top Street Performance

TSP A/C Compressor; Sanden SD-7 R134 Serpentine Belt; Chrome With Silver Clutch

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Vendor: Top Street Performance

TSP A/C Compressor; Sanden SD-7 R134 Serpentine Belt; Polished With Silver Clutch

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Choose "TSP A/C Compressor; Sanden 508 R134 Serpentine Belt; Chrome With Silver Clutch"

Vendor: Top Street Performance

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Regular price $246.92

Total price$2,590.76

Product Description

OS Giken BM531-HA is a SuperLock limited-slip differential for the BMW 215LW large differential case. The manufacturer lists the E92 335i with N54 and the early 135i manual-transmission application, subject to differential configuration.

Designed for the 215LW three-bolt type. Later 215LW spline-type installations require specialist removal and machining of the welded ring gear. Confirm the actual case, ring-gear attachment and drivetrain before ordering; the model name alone does not establish fitment.

Standard 1.5-way configuration with 25/35 ramps
20 plates
Progressive clutch-type locking

This is the LSD unit, not a complete differential housing assembly. Installation and setup require the vehicle service procedure and a qualified differential specialist.