Description

SSP Evo X MR SST Transmission Street Package

Firstly, Buy SSP Evo X MR SST Transmission Street Package online. The SSP Evo X MR SST Transmission Street Package is a performance upgrade designed for Mitsubishi Lancer Evolution X MR owners who want increased clutch capacity and improved durability from the factory 6-speed Twin-Clutch Sportronic Shift Transmission. Developed for the DCT470-based Evo X MR SST, this package combines upgraded clutch components, high-temperature seals, and a reusable stainless transmission filter to provide a stronger foundation for street-driven and performance-oriented Evo X builds.

The Evo X MR’s SST uses two wet multi-plate clutches and six forward gears. One clutch controls one group of gears while the second clutch operates the other group, allowing the transmission to preselect the next gear and execute rapid shifts. Because the clutch system is responsible for transferring engine torque through the transmission, increasing clutch capacity can become important as engine power and torque increase.

SSP offers the Evo X MR SST Street Package in four stages, allowing owners to select a clutch configuration based on their performance requirements. The current SSP listing identifies Stage 1 at 500 ft-lb, Stage 2 at 600 ft-lb, Stage 3 at 700 ft-lb, and Stage 3+ at 700 ft-lb with upgraded billet-aluminum piston seals.

SSP Evo X MR SST Transmission Street Package

The SSP Evo X MR SST Transmission Street Package is designed around the factory DCT470 transmission used in the Evolution X MR. Rather than replacing the entire transmission with another complete gearbox, the Street Package upgrades key internal SST components to increase clutch capacity and improve durability.

Each package includes an SSP clutch configuration, high-temperature Viton seals, and an SSP stainless lifetime filter. The Stage 3+ package adds billet aluminum piston seals for an additional level of internal upgrade.

This makes the package particularly relevant for Evo X owners who are modifying the 4B11T engine and need the SST to handle increased torque.

Built for the Evo X MR DCT470

The Evo X MR’s TC-SST is a sophisticated dual-clutch transmission. Mitsubishi specifies a 6-speed forward, 1-speed reverse constant-mesh transmission with two wet multi-plate clutches.

The dual-clutch design allows the transmission to prepare the next gear before the actual shift. One clutch handles one set of gears while the other clutch handles the alternate set. This architecture is one reason the Evo X MR can deliver extremely quick gear changes.

However, increasing engine torque also increases the load placed on the SST clutch packs. SSP’s Street Packages address this area with higher-capacity clutch configurations.

Four SSP Street Package Stages

SSP currently offers four versions of its Evo X MR SST Street Package.

Stage 1 – EVOSTRT1

The Stage 1 package uses an SSP 8-plate clutch rated at 500 ft-lb. It also includes SSP high-temperature Viton seals and a stainless lifetime filter.

This is the entry-level Street Package and can be a suitable option for an Evo X MR seeking additional clutch capacity without stepping into the higher-stage configurations.

Stage 2 – EVOSTRT2

Stage 2 upgrades the clutch configuration to an SSP 10-plate clutch with a listed capacity of 600 ft-lb. It retains the high-temperature Viton seals and stainless lifetime filter.

This stage is aimed at builds requiring more torque capacity than the Stage 1 package.

Stage 3 – EVOSTRT3

Stage 3 uses an SSP 12-plate clutch with a listed capacity of 700 ft-lb. It includes the same high-temperature Viton seals and stainless lifetime filter.

For higher-output Evo X MR builds, the additional clutch capacity provides a stronger foundation for handling increased torque.

Stage 3+ – EVOSTRT3+

Stage 3+ retains the 12-plate, 700 ft-lb clutch configuration but adds SSP billet aluminum piston seals alongside the high-temperature Viton seals and stainless lifetime filter.

This makes Stage 3+ the most comprehensive Street Package configuration in SSP’s current four-stage lineup.

Why Upgrade the Evo X SST?

Firstly, increased engine torque places greater demand on the SST clutch packs. A higher-capacity clutch package can provide additional torque-handling capability for modified vehicles.

Secondly, upgraded seals can be important because the SST relies on hydraulic pressure to apply its wet clutches. SSP uses high-temperature Viton seals in each Street Package stage.

Thirdly, the stainless lifetime filter provides a reusable filtration solution designed to support ongoing SST maintenance.

SSP High-Temperature Viton Seals

The SST clutch system depends on hydraulic pressure to apply and release its clutch packs. Proper sealing is therefore critical to transmission operation.

SSP’s Street Packages include high-temperature Viton seals designed for the demanding environment inside the SST. The Stage 3+ package goes further by adding billet aluminum piston seals.

These components are part of the overall internal upgrade rather than cosmetic modifications. When rebuilding or upgrading an SST, the condition of the seals and clutch components should be carefully evaluated.

SSP Stainless Lifetime Filter

Every Street Package stage includes an SSP stainless lifetime filter.

Transmission filtration is important because the SST contains numerous moving components and clutch materials. Keeping contaminants under control helps support the transmission’s hydraulic and mechanical systems.

A reusable stainless filter can also be convenient for enthusiasts who regularly service their vehicles, particularly performance cars that see frequent spirited driving or track use.

Choose the Correct Stage for Your Build

The appropriate Street Package depends on the torque output and intended use of the vehicle.

Package	Clutch	Listed Capacity	Additional Features
Stage 1	8-Plate SSP	500 ft-lb	Viton seals + stainless filter
Stage 2	10-Plate SSP	600 ft-lb	Viton seals + stainless filter
Stage 3	12-Plate SSP	700 ft-lb	Viton seals + stainless filter
Stage 3+	12-Plate SSP	700 ft-lb	Viton + billet aluminum piston seals + stainless filter

These are SSP’s listed package capacities. They should not be interpreted as a guarantee that a complete vehicle drivetrain will safely operate at those torque levels. Engine calibration, torque delivery, transmission condition, fluid, cooling, installation quality, and other drivetrain components all matter.

Street and Performance Applications

The SSP Street Package is designed around the Evo X MR SST platform and is suitable for performance-oriented street builds.

It can be considered for:

• Modified 4B11T Evo X MR vehicles
• Increased-torque street builds
• SST rebuild projects
• Vehicles experiencing clutch wear
• Performance-oriented Evo X MR builds
• Enthusiasts seeking increased SST clutch capacity
• Preventative transmission upgrades
• Higher-power applications requiring additional clutch capacity

The package is specifically associated with the 2008–2015 Mitsubishi Lancer Evolution X MR SST, and the DCT470 transmission platform is also used in related applications.

Important Installation Information

The SSP Evo X MR SST Transmission Street Package is an internal transmission upgrade. Installation requires disassembly of the SST and should be performed by a technician experienced with the Evo X MR DCT470 transmission.

A professional installation is particularly important because the SST combines mechanical gears, dual wet clutches, hydraulic control, sensors, and electronic control systems.

After installing an upgraded clutch package, appropriate transmission setup and adaptation procedures may be required. SSP-built complete SST transmission listings also note the need for TCU/mechatronic retention and post-installation teach-in/reprogramming when clutch plates are changed.

SST Maintenance

A stronger clutch package does not eliminate the need for proper transmission maintenance.

The Evo X SST uses dedicated transmission fluid and filtration. Mitsubishi’s technical documentation specifies DiaQueen SSTF-I for the TC-SST and lists a transmission oil capacity of approximately 7.1 liters, including the oil cooler.

For a modified Evo X MR, regular fluid and filter service becomes particularly important. Service intervals should be selected according to the vehicle’s power level, driving conditions, and transmission builder’s recommendations.

Product Specifications

• Brand: SSP Performance
• Product: Evo X MR SST Street Package
• Application: Mitsubishi Lancer Evolution X MR
• Model Years: 2008–2015
• Transmission: DCT470 / TC-SST
• Transmission Type: 6-Speed Twin-Clutch
• Stage 1: 8-plate clutch / 500 ft-lb listed capacity
• Stage 2: 10-plate clutch / 600 ft-lb listed capacity
• Stage 3: 12-plate clutch / 700 ft-lb listed capacity
• Stage 3+: 12-plate clutch / 700 ft-lb listed capacity
• Seals: SSP High-Temperature Viton
• Filter: SSP Stainless Lifetime Filter
• Stage 3+ Upgrade: Billet Aluminum Piston Seals
• Engine Platform: Mitsubishi 4B11T
• Transmission: Evo X MR SST

Buy SSP Evo X MR SST Transmission Street Package Online

If you’re upgrading an Evo X MR for increased torque, rebuilding the SST, or preparing a performance-oriented 4B11T build, the SSP Evo X MR SST Transmission Street Package provides multiple clutch-capacity options for the factory DCT470 transmission. With Stage 1 through Stage 3+ configurations, high-temperature Viton seals, and an SSP stainless lifetime filter, you can choose the package that best matches your vehicle’s power level and intended use, so shop and order your SSP Evo X SST upgrades and other Mitsubishi Evo parts from evomotorparts.com today.

Frequently Asked Questions

What is the SSP Evo X MR SST Street Package?

It is an aftermarket internal SST upgrade package for the Evo X MR DCT470 transmission. The package combines an upgraded clutch configuration with high-temperature Viton seals and an SSP stainless lifetime filter.

How many stages are available?

SSP currently lists four options: Stage 1, Stage 2, Stage 3, and Stage 3+.

How much torque can each stage handle?

SSP lists Stage 1 at 500 ft-lb, Stage 2 at 600 ft-lb, and both Stage 3 and Stage 3+ at 700 ft-lb.

What is the difference between Stage 3 and Stage 3+?

Both use the 12-plate clutch and are listed at 700 ft-lb. Stage 3+ additionally includes billet aluminum piston seals.

Does this replace the entire Evo X SST transmission?

No. The Street Package is an internal SST upgrade package, not a complete transmission assembly. It is installed into the existing transmission during a rebuild.

Is this for the Evo X GSR?

No. The package is designed for the Evo X MR’s 6-speed TC-SST/DCT470 transmission. The GSR uses a conventional manual transmission.

Can I install the package myself?

Professional installation is strongly recommended. The SST must be disassembled, and the clutch and sealing components must be installed correctly.

Does a clutch upgrade require transmission programming?

Depending on the specific build and installation, SST clutch replacement can require adaptation or teach-in procedures. Complete SSP SST rebuild listings specifically note post-installation reprogramming/teach-in for upgraded clutch plates.