Clutch Masters 12-13 Honda Civic Si 2.4L 6spd FX400 6-Puck Ceramic Clutch Kit
The Clutch Masters 08240-HRC6-X is the clutch-only version of the FX400 six-puck ceramic kit for the 2012-2013 Honda Civic Si with the K24 2.4L and six-speed manual. It is for the Si owner who already has, or is buying separately, the Clutch Masters lightweight steel flywheel and runs a Hondata FlashPro. If your K24 is turbocharged, supercharged or built, and the clutch flares on full-throttle shifts or slips in the upper gears, this is a disc and cover combination meant to hold that power for drag and road use.
The 9th-generation Si uses a hydraulic single dry clutch. Clutch Masters builds this kit around its Power Plus I hi-leverage heavy-duty pressure plate and a sprung ceramic disc with six pucks. The maker rates it at a 170 percent increase in holding capacity and labels it race/street. The sprung hub adds some dampening so the driveline does not bang as hard, but the puck design has solid rivets and no Marcel cushion, so engagement is fast and the clutch may chatter slightly in first and reverse.
The "-X" suffix is the important part. Clutch Masters lists 08240 kits as conversion kits: the stock Honda flywheel will not work, and 08240 kits require flywheel FW-037-SF. That flywheel is lighter than OEM, so Clutch Masters says a FlashPro or other engine management is needed or a check engine light can result. If you do not have FW-037-SF, buy the FX400 6-puck kit with the steel flywheel included instead. If you will stay on the factory ECU, Clutch Masters points you to the 08320 series, such as the 08320-HRC6 OEM-weight FX400.
Ceramic is not the answer for every car. Clutch Masters says ceramic discs are never recommended for stock or near-stock vehicles and can shorten clutch life with easy street driving. A stock Si with a worn clutch is better served by an organic kit.
In fourth gear around 2,500 rpm, go to full throttle and watch the tach. A tach that jumps ahead of road speed is slip. Rule out a leaking slave cylinder or air in the line first: a soft or low pedal can keep the clutch from fully releasing and feel like a clutch problem. Our slipping diagnosis guide and flare versus slip explainer walk through telling a worn clutch from other drivetrain faults.
Our listing is for the 2012-2013 Honda Civic Si 2.4L six-speed. Clutch Masters also lists 08240-HRC6-X for the 2012-2015 Civic Si 2.4L, 2009-2014 Acura TSX 2.4L six-speed and 2013-2015 Acura ILX 2.4L six-speed. Only the six-speed K24 cars apply; automatic and 1.8L Civics do not. Confirm you have or are buying FW-037-SF before ordering. If you are unsure, send us your year and VIN and we will check it. You can browse other kits in our clutch and rebuild kit collection.
| Brand | Clutch Masters |
| Part number | 08240-HRC6-X |
| Fits | Clutch Masters 12-13 Honda Civic Si 2.4L 6spd FX400 6-Puck Ceramic Clutch Kit |
| Vehicle fitment | Honda Civic Si (2012-2013) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. Clutch Masters lists 08240 kits as conversion kits that require its FW-037-SF steel flywheel. The factory flywheel will not work. If you need the flywheel too, buy the FX400 kit that includes it.
Clutch Masters says 08240 kits need a Hondata FlashPro or other engine management because FW-037-SF is lighter than OEM and can set a check engine light. If you want to keep the factory ECU, use an 08320 series kit, which is OEM weight.
Clutch Masters lists this part number for the 2012-2015 Civic Si 2.4L six-speed, plus the 2009-2014 TSX and 2013-2015 ILX six-speed. Our listing is titled 2012-2013, so send your year and VIN and we will confirm before it ships.
It can. Clutch Masters warns that the solid-rivet six-puck design has no Marcel and may chatter slightly in first and reverse. If daily comfort matters, look at an organic or Kevlar kit instead.
The Civic Si six-speed takes Honda MTF. Bleed the clutch hydraulics with the brake fluid shown on the reservoir cap after the install.
