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Vivid Racing Gear 
LSD 165 K15 Limited-Slip Differential: Performance Redefined
The LSD 165 K15 Limited-Slip Differential is engineered for those who demand more from their vehicles. Unlike standard open differentials that are commonly found in everyday cars, the LSD system is designed to maximize power transfer to the road, ensuring that your driving experience is both exhilarating and reliable, regardless of the conditions.
Key Features
- 1.5 Way Locking Mechanism: This differential offers a versatile 1.5 way configuration, providing a balanced approach to both street and track performance.
- Precision Engineering: Built on nearly 50 years of racing heritage, the LSD 165 K15 is designed to enhance traction and improve handling without compromising the vehicle's natural dynamics.
- Adjustable Locking Strength: Tailor the locking effect to match your driving style, whether you’re navigating tight corners or powering through straightaways.
Benefits of Upgrading to LSD 165 K15
Upgrading to the LSD 165 K15 means you’re not just replacing a component; you’re enhancing your vehicle's capability. This differential limits wheel slip, ensuring that both driving wheels maintain traction even in challenging conditions. The result? You get improved acceleration, better cornering stability, and a more responsive driving experience.
Specifications
- Type: 1.5 way (also compatible as 2 way)
- Vehicle Fitments:
- Mazda RX-7 FC3S MT (OEM Diff: OPEN/TORQUE SENSING, 13BT 1986-1991)
- Mazda RX-7 FD3S/JM1FD MT/AT (OEM Diff: TORQUE SENSING, 13B-REW 1993-2002)
- Mazda RX-8 SE3P MT/AT (OEM Diff: OPEN/TORQUE SENSING, 13B-MSP 2003-2012)
- Notes: Images are for representation only. Actual product may vary.
Customer Feedback
Many customers have shared their experiences with the LSD 165 K15, noting significant improvements in their vehicle's handling and performance. One user highlighted how the LSD transformed their RX-7’s cornering ability, stating, "I can feel the car gripping the road like never before. It’s a game changer for both street and track." Another customer praised the adjustability, saying, "Being able to fine-tune the locking strength has allowed me to dial in the perfect setup for my driving style." These insights reflect the dedication to quality and performance that the LSD 165 K15 embodies.
Optimize Your Ride
When you choose the LSD 165 K15, you're not just upgrading your differential; you're investing in a complete driving experience. With the right suspension components and chassis bracing, you can optimize your vehicle’s overall performance, achieving the perfect balance for both competitive racing and everyday driving.
Other Part Numbers:
Cusco #cusLSD 165 K15
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Cusco is an independent aftermarket company in Japan specializing in manufacturing high-performance parts such as drivetrain components, suspension, chassis bars, including strut towers, engine parts, roll cages, and more.
They are widely known in the automotive industry and have participated in various race series within and outside Japan.
Today, they have become the go-to brand of aftermarket tuners all around the globe.
Racing BackgroundCusco has created many racing vehicles for different racing disciplines, such as rallying, track racing, autocross, time attack events, and gymkhana.
With a history of producing the best race cars in its class, they have used that knowledge and have translated it to all their products creating the best performing and safest parts out there.
Improves Driving ExperienceCusco's goal is to improve each car's potential to provide the driver with the best experience possible. It helps the car provide better feedback to the driver, which helps the driver create better judgment and confidence to trust their vehicle.
Inhouse Manufacturing ProcessCusco maintains its high-quality standard by doing their parts inhouse. From design to manufacturing, they have created a dedicated facility that would help them ensure that it passes their strict requirements, providing the clients with the best products they deserve. The company is also ISO 9001 certified, meaning all of its processes have passed the standard requirement of the regulatory commission.
Struts and Roll cagesCusco has been very popular when it comes to chassis stiffeners and roll cages. They create one of the best roll cages that comply with the racing body's standards. Their design helps improve chassis stiffness and rigidity, making it handle better and helps protect the driver in case of an accident. It is intended to save dozens of lives on the race track and in the streets.
Purchase Cusco Parts at Vivid RacingCusco has been supplying parts for almost a decade among thousands of enthusiasts worldwide. With its track record of providing parts that outperform the competition, they are a brand that anyone can count on. Visit Vivid Racing and check out the list of Cusco products specific to your needs.
| Sale price | None |
| Wholesale price | $1,244.78 |
| Shipping |
Weight: 24.00 Length: 10 Width: 10 Height: 10 |
| Product Added At | Wednesday 15 November, 2023 |
| Product Modified At | Friday 11 July, 2025 |
| Imported By | ETLOverride |
| Last Edited By | Turn_API |
| View In Admin |
| Carb Approved | - |
|---|---|
| Carb Number | - |
| Epa Status | N/A |
| Prop65 | Unknown |
| Carb Required | - |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Turn 14 | $1,054.90 | $1,507.00 | ? | $1,356.30 | ? | 2025-07-11 10:13:58 |
