What is the difference between a 1.5-way and a 2-way LSD?

A 1.5-way LSD, like this Cusco unit, engages during both acceleration and deceleration, but with a stronger effect during acceleration. A 2-way LSD engages with equal force in both directions. The 1.5-way design offers a good balance of stability during acceleration and allows for more predictable handling during braking.

What kind of differential fluid should I use with this Cusco LSD?

Cusco recommends using a specific LSD oil for optimal performance and longevity. It's crucial to consult the manufacturer's installation manual or contact Cusco directly for the exact fluid type and viscosity to ensure proper operation and prevent damage.

Does this limited slip differential come with all the necessary installation hardware?

This listing is for the Cusco LSD unit itself. Installation typically requires additional components such as new bearings, seals, and potentially shims, which are often sold separately. It is highly recommended to consult the installation instructions or a professional mechanic to determine all parts needed for a complete installation.

Specifications

Brand: Cusco
Part #: LSD 431 K15
UPC: 4996338009616

Cusco LSD MZ 1.5 Way (1.5 & 2 Way) 2016 Mazda Miata ND5RC (USDM ONLY)

Name: Cusco LSD MZ 1.5 Way (1.5 & 2 Way) 2016 Mazda Miata ND5RC (USDM ONLY)
Brand: Cusco
SKU: cusco-cusco-lsd-mz-1-5-way-1-5-2-way-2016-mazda-miata-nd5rc-usdm-only-t14-4385949
Price: 1488.00 USD
Availability: BackOrder

$1488.00

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2016 Mazda MX-5 Miata. Cusco LSD MZ 1.5 Way (1.5 & 2 Way) improves traction and handling for spirited driving.

Key Features

Fits 2016 Mazda MX-5 Miata (USDM ONLY).
Cusco MZ 1.5 Way limited slip differential.
Engages during acceleration and deceleration for improved traction and stability.
Helps manage wheelspin when exiting corners, putting more power down.
Designed to fit directly into the factory differential housing.
Built with durable materials for performance driving applications.

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About this part

Product Details

If you're looking to get the most out of your 2016 Mazda MX-5 Miata on the track or during spirited drives, a limited slip differential (LSD) like this Cusco MZ 1.5 Way unit can make a notable difference. This differential is designed to manage how power is distributed between the rear wheels, especially when you're accelerating out of corners. By controlling wheelspin, it helps put more power down to the pavement, improving both traction and the car's overall handling balance.

Cusco is well-known for its performance drivetrain components, and this differential is built with their experience in mind. It features a 1.5-way activation, meaning it engages during both acceleration and deceleration, but with a stronger effect during acceleration. This design helps to stabilize the rear end when you're getting on the throttle, while still allowing for some differential action during braking. The internal components are made from durable materials to withstand the demands of performance driving, and the unit is designed to fit directly into your Miata's existing differential housing, though professional installation is recommended due to the complexity of differential work.

This specific LSD is designed for the USDM (United States Domestic Market) 2016 Mazda MX-5 Miata (ND chassis). It's important to ensure your vehicle is compatible, as this unit is not designed for other markets or model years. Proper installation and fluid maintenance are key to its longevity and performance. If you're serious about improving your Miata's cornering grip and stability, this Cusco differential is a solid option to consider.