Exedy 08-15 Mitsubishi Evo X 4B11T 2.0L Twin-Organic Clutch Kit

The 4B11T in the 2008-2015 Lancer Evolution X makes strong power on a tune, bolt-ons and a bigger turbo, but the five-speed manual GSR came with a single-disc clutch sized for stock torque. Once boost goes up, that clutch starts to flare in the upper gears and launches turn into burned friction. The Exedy MM062SDF is a Hyper Series twin-plate clutch with organic friction for the Evo X manual, packaged with Exedy's lightweight flywheel, for owners who need far more holding power without a metallic clutch's on-off engagement.

What the Hyper Twin organic does in an Evo X

A twin-plate clutch puts two friction discs and a floating intermediate plate inside one cover. Doubling the friction faces raises holding capacity without a larger diameter, so the clutch stays light and compact. Organic facings are the street-friendly choice in this design: they bite progressively and are easier to slip gently in traffic than the cerametallic version. Because the Evo X sends power to all four wheels through the S-AWC system, there is no tire spin to soak up a harsh engagement, so a smoother friction material also goes easier on the gearbox and driveline. Exedy states that every Hyper Series kit includes a forged one-piece chromoly flywheel that must be used, and that the kits bolt in using the factory actuation without modification.

Symptoms that point to an Evo X clutch upgrade

• Revs flare without acceleration in fourth or fifth at full boost
• Slip that appeared after a tune, turbo or fuel upgrade
• A glazed or burned smell after launches or track sessions
• Chatter as a heat-damaged disc grabs unevenly
• A stock-replacement or single-disc upgrade that already wore out under the current power level

How to confirm before you buy

Check the hydraulics first. Bleed the clutch with fresh fluid, look for a leak at the slave cylinder and make sure the pedal returns fully, since a hydraulic problem can feel exactly like slip. Then do a fourth-gear pull from low rpm at full boost and watch whether rpm rises faster than road speed. If you have a data log, the same pattern shows up as engine speed pulling away from vehicle speed. Our manual vs automatic repair cost guide helps you budget the labor so you only pull the gearbox once.

Fitment

This kit is listed for the 2008-2015 Mitsubishi Lancer Evolution X with the 2.0L 4B11T and the five-speed manual. It does not fit the Evolution X MR, which uses the six-speed Twin Clutch SST automated gearbox and has no clutch pedal. It is also not for the earlier 4G63T Evo IV-IX; those cars use the Exedy MM022SDF twin organic kit. If your Evo X has a swapped gearbox or you are unsure, send us the year and VIN before ordering. For track-only use, compare the Exedy Hyper Twin cerametallic for the Evo X GSR; for a milder build, the Exedy Stage 1 organic 05803A keeps a single disc.

Install notes

• Install the supplied chromoly flywheel. The Hyper Twin does not work with the factory flywheel.
• Plan on a new release bearing and pilot bearing. Exedy sells these separately as Hyper Series accessory kits, so confirm what you have before the car is apart.
• Assemble the discs and intermediate plate in the order and direction shown in the instructions, and center the discs with an alignment tool. A universal clutch alignment kit covers the spline.
• Look over the rear main seal and transmission input seal while you have access. Oil on new organic discs will cause chatter.
• Bleed the hydraulics with fresh fluid of the type Mitsubishi specifies.
• If the flywheel is ever resurfaced, Exedy says the correct step height between the friction face and the cover mounting surface must be kept.

Expect a light rattle with the pedal pressed. Exedy notes that the floating plates in Hyper Twin and Triple kits rattle when disengaged and that this is normal.

Does this fit the Evo X MR with the SST gearbox?

No. The MR uses the Twin Clutch SST automated transmission, which has no clutch pedal or conventional clutch. This kit is for the five-speed manual GSR and other manual Evo X cars.

Can I keep my stock Evo X flywheel?

No. Exedy includes a forged chromoly flywheel with every Hyper Series kit and says it is required for use.

Organic or cerametallic Hyper Twin for my Evo X?

Choose organic for a car that still sees regular street driving; it engages more progressively. The cerametallic version suits dedicated track or drag use where grab matters more than comfort.

Is the rattle with the clutch pedal down a problem?

No. Exedy explains that the free-floating pressure plate and intermediate plate in twin-plate kits rattle when the clutch is disengaged. It is normal for this design.

Can the clutch be rebuilt later?

Yes. Exedy says every component of a Hyper Series clutch is sold separately through its distributors, so worn discs can be replaced without buying a whole kit.

• Automatic vs Manual Transmission Repair Cost