Clutch Masters 14 Acura ILX FX400 High Rev 6-Puck Ceramic Clutch Kit w/ Steel FW

This is the most aggressive single-disc package Clutch Masters builds on its OEM-ECU platform for the 2.4L K24 Acura ILX six-speed: the FX400 6-puck ceramic clutch, sold as 08320-HRC6-SK with the heavy steel flywheel it needs already in the box. It is meant for an ILX that has been turned into a real build, usually forced induction or an all-motor K24 with serious head work, where an organic disc slips the first time it sees full power in third gear, or for a car that sees drag strip launches and road course sessions as well as the drive to get there.

What the FX400 6-puck clutch does in a K24 ILX

The disc replaces the full organic ring with six ceramic buttons on a heavy-duty hub, and Clutch Masters pairs it with its Power Plus I high-leverage pressure plate. The maker lists a 170 percent increase in holding capacity over stock and labels the kit race/street. The buttons are riveted solid with no Marcel cushion spring under them, which is where the grip and the drawback both come from: the clutch locks up quickly, and Clutch Masters warns it may chatter slightly in first and reverse. It also says ceramic discs are never recommended for stock or near-stock cars, because gentle commuting with a harsh-engaging disc tends to slip it and shorten its life. If your ILX is mostly stock, this is the wrong clutch.

The 08320 platform is a conversion. The factory flywheel will not work with any Clutch Masters K24 kit, and kits starting with 08320 require the FW-320-SF heavy steel flywheel. Because that flywheel stays at factory weight, the ILX keeps its OEM engine calibration with no FlashPro needed. The lighter 08240 platform is the one that requires engine management.

Symptoms that send ILX owners to a 6-puck

• A street-grade upgrade clutch that already slips at peak boost or near redline
• RPM flaring on a full-throttle 2-3 shift or a hard launch
• Glazed, burnt facings found at the last clutch change
• Heat-checked or blued flywheel face from repeated slipping
• A soft or high engagement point that keeps creeping upward

How to confirm before you buy

A clutch that slips on a modified car is not always worn out; it may simply be under capacity. Confirm with a fourth-gear, full-throttle pull from low rpm and watch whether the tach runs ahead of road speed. Then check the hydraulics: a weeping slave, old fluid or a pedal that does not return fully can hold the release bearing against the fingers and cause slip that no disc will fix. Oil on the bellhousing seam points to a rear main seal that must be fixed during the job. Our manual transmission repair cost guide helps you budget labor before the gearbox comes out.

Fitment

Our listing is titled for the 2014 Acura ILX. Clutch Masters' application list for the 08320-HRC6 covers the 2013 to 2015 Acura ILX 2.4L six-speed with the OEM ECU, the 2009 to 2014 Acura TSX 2.4L six-speed and the 2012 to 2015 Honda Civic Si 2.4L six-speed. The hybrid and 2.0L automatic ILX models do not use this clutch. If your car already has an aftermarket flywheel or clutch, tell us what is in it, or send the year and VIN for a fitment check. Already own the FW-320-SF flywheel? The FX400 ILX kit without flywheel is the same clutch. If you want a ceramic disc that is easier to live with, compare the FX250 ILX kit with steel flywheel.

Install notes

• Bolt on the supplied steel flywheel with new flywheel bolts at Honda torque; the stock flywheel cannot be reused with this clutch.
• Clean both friction surfaces with brake cleaner, put a light film of grease on the input splines and confirm the disc slides freely.
• Center the disc with the included alignment tool and draw the pressure plate down evenly in a crisscross pattern.
• Fit the new release bearing from the kit and check the fork and pivot ball for wear.
• Flush and bleed the clutch hydraulics with fresh brake fluid and refill the gearbox with Honda manual transmission fluid.
• A solid-hub ceramic clutch hammers worn mounts; the Civic Si and ILX 2.4L mount kit is worth doing while the car is apart.
• Drive gently through break-in before any launches so the buttons bed evenly against the flywheel.

Will this clutch work with my factory ILX flywheel?

No. Clutch Masters says the stock flywheel will not work with its K24 conversion kits, and every 08320 kit requires the FW-320-SF steel flywheel. This SK package includes the steel flywheel.

Do I need a FlashPro or a tune?

No. The 08320 platform uses an OEM-weight steel flywheel, so the ILX keeps its factory ECU calibration. Only the lighter 08240 kits call for a FlashPro or equivalent.

Is the FX400 6-puck good for daily driving?

Only if you accept some compromise. The disc has no Marcel spring, engages very quickly and may chatter slightly in first and reverse. Clutch Masters does not recommend ceramic discs for stock or near-stock cars.

Does it fit a Civic Si or TSX too?

Clutch Masters lists the 08320-HRC6 for the 2012 to 2015 Civic Si 2.4L six-speed and the 2009 to 2014 TSX 2.4L six-speed as well as the 2013 to 2015 ILX 2.4L. Send your VIN if you want us to check your car.

What is in the box?

Clutch Masters kits include the pressure plate, disc, release bearing, pilot bearing where applicable and an alignment tool; this SK version adds the steel flywheel.

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