Product Overview
CUSCO Type MZ Rear LSD for Toyota GR Yaris Gen 2 GXPA16
The CUSCO Type MZ Rear LSD is a high-performance 1.5-way clutch-type limited slip differential designed for the Toyota GR Yaris Gen 2 GXPA16. With CUSCO part number LSD-1C8-K15 and SKU LSD1C8K15, this rear differential upgrade is designed to provide more controlled torque distribution, improved traction and more predictable behaviour during hard acceleration and performance driving.
Whether your GR Yaris is used as a fast-road car, weekend performance build or regularly driven on track, upgrading the rear differential can help make better use of the grip available from the tyres and chassis.
Looking for other upgrades for your car? Read our Toyota GR Yaris performance parts and upgrades guide for information on brakes, suspension, cooling, intake, exhaust, wheels and drivetrain upgrades.
Why Upgrade with the CUSCO Type MZ Rear LSD?
A limited slip differential helps control the difference in wheel speed across an axle when traction conditions change. During hard acceleration and cornering, the CUSCO Type MZ Rear LSD can help distribute torque more effectively rather than allowing one driven wheel to spin excessively.
For performance driving, potential benefits include:
- Improved corner-exit traction when accelerating hard
- More controlled rear differential behaviour
- Better use of available tyre grip
- More predictable torque distribution
- Improved response during fast-road driving
- Greater control during track use
- Mechanical clutch-type differential operation
If you are considering other drivetrain upgrades, browse our limited slip differentials and performance LSD range.
CUSCO Type MZ 1.5-Way LSD Operation
The CUSCO LSD-1C8-K15 is supplied in a 1.5-way configuration using 55°/20° cam angles.
A 1.5-way limited slip differential provides strong locking action under acceleration while providing a reduced locking effect during deceleration. This makes it particularly suitable for drivers who want improved drive out of corners while retaining more progressive differential behaviour when coming off the throttle or entering a corner.
The LSD can also be reconfigured to a 2-way 55°/55° setup, allowing the differential characteristics to be changed for more specialised performance or motorsport applications.
High-Capacity CUSCO Type MZ Construction
CUSCO specifies the LSD1C8K15 as a D-size Type MZ limited slip differential using six clutch discs per side.
The multiple clutch-disc design provides mechanical differential locking, while the specified initial torque of 8–10 kgf·m contributes to the responsive characteristics of the Type MZ design.
This makes the CUSCO LSD particularly suitable for enthusiasts building a GR Yaris for demanding road, fast-road and track use where consistent differential behaviour is important.
You can also browse our CUSCO performance parts range for additional suspension, chassis and drivetrain upgrades.
Designed for the Toyota GR Yaris Gen 2 GXPA16
This CUSCO Type MZ Rear LSD is designed for the later Toyota GR Yaris GXPA16 application, including the Gen 2 facelift model from the specified production period.
The GR Yaris uses Toyota’s turbocharged 1.6L three-cylinder G16E-GTS engine and GR-FOUR drivetrain, making careful product fitment especially important when choosing differential and drivetrain components.
Vehicle application: Toyota GR Yaris Gen 2
Chassis code: GXPA16
Engine: 1.6L L3 Turbo – G16E-GTS
Position: Rear
Please check your vehicle’s year, chassis code and specification before ordering.
CUSCO LSD1C8K15 Key Specifications
- Brand: CUSCO
- Product: Type MZ Limited Slip Differential
- CUSCO Part Number: LSD-1C8-K15
- SKU: LSD1C8K15
- Position: Rear
- LSD Type: Type MZ
- Factory Configuration: 1.5-Way
- Factory Cam Angle: 55°/20°
- Alternative Configuration: 2-Way – 55°/55°
- LSD Size: D Size
- Clutch Discs: 6 Per Side
- Initial Torque: 8–10 kgf·m
- Application: Toyota GR Yaris Gen 2
- Chassis: GXPA16
- Engine: 1.6L L3 Turbo – G16E-GTS
- JAN Code: 4996338108876
For manufacturer specifications and further technical information, visit the official CUSCO GR Yaris LSD information.
Fast-Road and Track GR Yaris Differential Upgrade
The Toyota GR Yaris already provides impressive performance from the factory, but a clutch-type LSD can become particularly useful as the vehicle is driven harder or developed with additional performance upgrades.
A well-planned GR Yaris build should consider the complete vehicle rather than concentrating on engine power alone. Differential performance works alongside tyre choice, suspension geometry, brakes and chassis setup.
For owners building a more performance-focused GR Yaris, related upgrade areas can include:
- Performance tyres and lightweight wheels
- Coilovers and suspension upgrades
- Chassis braces and handling components
- Performance brake pads and discs
- Intercooler and cooling upgrades
- Intake and induction systems
- Performance exhaust systems
- Drivetrain and differential upgrades
Our Toyota GR Yaris modification guide explains how these different upgrade areas can work together when planning a road or track-focused build.
CUSCO Type MZ vs Standard Differential
The key advantage of a performance clutch-type LSD is its ability to mechanically control differential action under demanding driving conditions.
Rather than choosing an LSD purely because it provides more locking action, the correct differential should be selected according to how the vehicle will actually be used. A road-biased GR Yaris may have different setup requirements from a dedicated track or competition vehicle.
The factory 1.5-way 55°/20° configuration of the LSD1C8K15 provides a useful balance between strong acceleration locking and reduced deceleration locking, while the alternative 2-way configuration gives experienced users additional setup flexibility.
Professional LSD Installation Recommended
Installation of a clutch-type limited slip differential requires specialist mechanical knowledge and accurate differential setup.
Items such as bearings, oil seals, suitable differential oil and other installation components may be required separately depending on the vehicle and condition of the existing components.
Bearings, oil seals and oil are not included with the LSD unless specifically stated otherwise.
We strongly recommend installation by a qualified performance or transmission specialist with experience in differential assembly and setup. Installation should follow the relevant Toyota repair procedures together with the instructions supplied by CUSCO.
Buy CUSCO Type MZ Rear LSD for GR Yaris in the UK
Order the CUSCO Type MZ Rear LSD for Toyota GR Yaris Gen 2 GXPA16 – LSD1C8K15 from Performance Car Parts UK.
We supply performance parts for Japanese and European performance vehicles throughout the UK, including products for road, fast-road, track and motorsport applications.
Explore more CUSCO performance parts or browse our limited slip differential range for additional drivetrain options.
If you are unsure whether CUSCO LSD1C8K15 is suitable for your Toyota GR Yaris, please confirm your vehicle details and chassis code before ordering.
Upgrade your Toyota GR Yaris GXPA16 with the CUSCO Type MZ Rear LSD and improve traction, differential response and control when it matters most.
