Clutch Masters 23-24 Toyota GR Corolla 1.6L Turbo 6-Speed FX350 Clutch Kit - 450ft/lbs Torque

A tuned GR Corolla that has started to flare RPM on a boosted third-gear pull, or a car about to get a bigger turbo or an aggressive tune, needs more clutch than Toyota installed. The Clutch Masters 16616-HDFF FX350 kit is built for the 2023-2024 Toyota GR Corolla 1.6L turbo six-speed and is rated at 450 ft-lb in our listing, which leaves a lot of headroom over the factory 273 lb-ft. It is the step for owners who still drive the car every day but want it to hold on a track weekend.

What the FX350 clutch kit does in a GR Corolla

The G16E-GTS three-cylinder sends its torque through the clutch into the EA67F six-speed manual and then to the GR-Four all-wheel-drive system. Every launch loads all four tires at once, so the clutch takes the hit that a front-drive car would spin off. Clutch Masters pairs its Power Plus I high-leverage heavy-duty pressure plate with a segmented, steel-backed Fiber-Tough disc. The maker says this combination gives a 110 percent increase in holding capacity, with engagement a little more aggressive than its milder kits and some chatter. A marcel spring wafer under the linings and a sprung hub keep it civil enough for the street.

Clutch Masters lists the kit contents as the disc, pressure plate, an OEM-or-better release bearing, an alignment tool, instruction card and decals, with a pilot bearing only where the application uses one. A flywheel is not included.

Symptoms that point to the clutch

• RPM climbs without a matching gain in speed under full boost, often first in third or fourth gear
• Slip that started right after a tune, larger intercooler or turbo upgrade
• Judder or shudder pulling away from a stop
• A burnt friction smell after launches or autocross runs
• Pedal engagement point moving higher as the disc wears thin
• Squeal or rumble with the pedal down, which points to the release bearing

How to confirm it before you buy

Do a controlled check: in fourth gear at low RPM, go to full throttle and watch the tach against road speed. If RPM rises faster than the car accelerates, the clutch is slipping. Rule out a soft hydraulic pedal first by bleeding the system, because air or a leaking cylinder can keep the clutch from fully engaging and feel like a worn disc. Our slipping diagnosis guide walks through separating clutch slip from other driveline problems, and the manual transmission repair cost breakdown helps you budget the labor.

Fitment

This kit is listed for the 2023-2024 Toyota GR Corolla 1.6L turbo with the six-speed manual. Clutch Masters does not call out the Morizo Edition separately, and that car uses the EA68F gearbox with different ratios and a 295 lb-ft tune, so Morizo owners should send their VIN before ordering. Cars from 2025 on are not on this listing. If you are unsure, send us your year and VIN and we will confirm the part number 16616-HDFF before it ships. Other GR Corolla clutch steps are the milder FX100 kit and the ceramic FX400 8-puck kit.

Install notes

• The transaxle has to come out, which on the AWD car also means separating the front driveline from the transfer case; plan the job as a full clutch replacement.
• Replace or resurface the flywheel. Clutch Masters builds the FW-616-SF steel flywheel at 21 lb for street GR Corollas and offers the 12 lb FW-616-AL aluminum flywheel for track cars.
• Center the disc with the supplied alignment tool, or use a universal clutch alignment tool kit, and run the pressure plate bolts down in a star pattern to the factory torque.
• Bleed the clutch hydraulics with fresh fluid of the type marked on the reservoir cap, then check the engagement point.
• Follow the break-in on the Clutch Masters instruction card: gentle driving and no launches for the first few hundred miles.

Every kit is new, in stock and ships from the USA the same business day, with a 1-year warranty.

Is the FX350 streetable in a daily-driven GR Corolla?

Clutch Masters rates it STREET/RACE. The Fiber-Tough disc has a marcel spring and sprung hub, but the maker says it engages a bit more aggressively than its milder kits and will produce some chatter.

Does the kit include a flywheel?

No. It includes the disc, pressure plate, release bearing, alignment tool and instruction card. Pair it with the FW-616-SF steel or FW-616-AL aluminum flywheel, or have your flywheel resurfaced.

How much torque will it hold?

Our listing rates the 16616-HDFF at 450 ft-lb. Clutch Masters describes it as a 110 percent increase in holding capacity over stock.

Will it fit the Morizo Edition or a 2025 GR Corolla?

The maker lists the 2023-2024 GR Corolla 1.6L turbo 6-speed. The Morizo uses the EA68F gearbox, and 2025-up cars are not listed, so send us your VIN first.

How should I break it in?

Drive it gently with no hard launches or high-RPM engagement for the first few hundred miles so the disc and flywheel faces bed in, as the Clutch Masters instruction card describes.

• Transmission Slipping Diagnosis Guide
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