What is the difference between 1.5-way and 2-way operation on this LSD?

A 2-way limited-slip differential locks up under both acceleration and deceleration. A 1.5-way differential locks up under acceleration and partially under deceleration. The Cusco RS allows you to adjust the cam angle to select between these two modes, offering flexibility for different driving conditions.

What else might I need for installation?

Installing a differential is a complex job. You will likely need new differential fluid, and potentially new axle seals and bearings. It is highly recommended to consult a professional mechanic for proper installation and setup.

Does this differential come with all necessary hardware?

This listing is for the Cusco LSD unit itself. It does not typically include installation hardware such as bolts, seals, or fluids. Please refer to the manufacturer's installation guide or consult with a professional to determine all required components for your specific installation.

Specifications

Brand: Cusco
Part #: LSD BM1 L2
UPC: 4996338019158

Cusco LSD RS 2 Way (1.5&2 Way) Rear 98-06 BMW 318i/320i (E46)

Name: Cusco LSD RS 2 Way (1.5&2 Way) Rear 98-06 BMW 318i/320i (E46)
Brand: Cusco
SKU: cusco-cusco-lsd-rs-2-way-1-5-2-way-rear-98-06-bmw-318i-320i-e46-t14-180690
Price: 1665.60 USD
Availability: BackOrder

$1665.60

On Backorder

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Cusco LSD RS 2 Way (1.5&2 Way) rear differential for 98-06 BMW 318i/320i (E46). Improves traction and handling.

Key Features

Fits 1998-2006 BMW 318i and 320i (E46).
Cusco RS 2-way limited-slip differential with adjustable cam mechanism for 1.5-way or 2-way operation.
Strong steel casing and precision-machined internal components for durability.
Special oil seal design helps prevent leaks.
Improves traction and stability during acceleration and deceleration.
Designed for performance driving, autocross, and track use.

This differential is designed to fit the 1998-2006 BMW 318i and 320i (E46). Please verify fitment for your specific vehicle before purchase.

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About this part

Product Details

The Cusco RS 2-way limited-slip differential is built with a unique cam mechanism that allows for both 1.5-way and 2-way operation, depending on how you adjust it. This means you can fine-tune how the differential locks up during acceleration and deceleration. For spirited driving or track use, this level of control can significantly improve your car's traction out of corners and its overall stability under braking.

This differential is constructed with a strong, well-built steel casing and uses precision-machined internal components for smooth and reliable operation. The RS series features a special oil seal that helps prevent leaks, a common issue with some aftermarket differentials. It's designed to handle the demands of performance driving, providing a noticeable improvement in how your BMW E46 puts power down, especially when you're pushing its limits. The 2-way action means it locks up under both acceleration and deceleration, helping to keep the rear end planted when you're on the throttle and also providing stability when you lift off mid-corner.

Installing a limited-slip differential is a significant upgrade for your drivetrain. It's a job that requires specialized tools and knowledge, so we recommend having it installed by a professional mechanic. This Cusco LSD is a popular choice for BMW owners looking to enhance their car's performance and handling characteristics, especially for those who participate in autocross or track days.