{"product_id":"competition-clutch-stage-4-kit-rsx-civic-si","title":"Competition Clutch Stage 4 Kit, RSX Civic Si","description":"\u003cul\u003e\n\u003cli\u003eSolid hub, ceramic 6-paddle disc \u003c\/li\u003e\n\u003cli\u003eFits 02-06 RSX, 06-11 Civic Si \u003c\/li\u003e\n\u003cli\u003eTorque capacity 250% increase over stock \u003c\/li\u003e\n\u003cli\u003eIncludes pressure plate, alignment tool \u003c\/li\u003e\n\u003cli\u003eRequires 500 street miles break-in \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#TechnicalData\"\u003eTechnical Data\u003c\/a\u003e\u003c\/li\u003e   \u003cli\u003e\u003ca href=\"#Included\"\u003eIncluded\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#InstallGuide\"\u003eInstall Guide\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eCompetition Clutch Stage 4 Kit, RSX Civic Si\u003c\/h3\u003e\n\u003cp\u003eIf you're putting real power through a 6-speed K20 and a street clutch is slipping every time you get into boost, the Competition Clutch Stage 4 kit (part 8037-0620) is the solid-hub ceramic 6-paddle answer. It fits the 2002-2006 Acura RSX 2.0L 6-speed and the 2006-2011 Honda Civic Si 2.0L 6-speed. This is the 8037 family, not 8090, and it doesn't fit a TSX or a 5-speed RSX (that's 8036). A flywheel is not included.\u003c\/p\u003e\n\u003ch3\u003eWhat It Is and Why It Works\u003c\/h3\u003e\n\u003cp\u003eStage 4 concentrates friction into six ceramic pucks, so you get more pressure per pad and a disc that keeps its bite at temperatures that glaze an organic. Competition Clutch rates Stage 4 at up to a 250 percent increase in torque capacity over stock and positions it for high-horsepower, forced induction, and race use. The 0620 suffix is the solid-hub (unsprung) disc. Competition Clutch's Stage 4 copy states that 0620 kits are solid hub. Solid hub is harsher than the sprung 8037-1620 kit already in the catalog, because there's no hub spring to take the edge off a launch. Expect chatter, noise, and abrupt engagement. That's the nature of a solid-hub 6-paddle, not a defect.\u003c\/p\u003e\n\u003cp\u003eThe kit includes the pressure plate, one ceramic 6-paddle disc, an alignment tool, a pilot bushing, and a throwout bearing. A flywheel is not included. Body lines that mention a billet flywheel or a 230 mm to 250 mm plate are boilerplate. Trust the spec table. Some dealers note you should run an RSX Type-S flywheel with this clutch. Confirm that against your existing flywheel before you order, because this box doesn't include one.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8037-0620\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHybrid Racing SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCOC-8037-0620\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStage 4 single-disc clutch kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisc\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCeramic, 6-paddle, solid hub (0620)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorque Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 250 percent increase over stock, per manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePressure plate, ceramic 6-paddle disc, alignment tool, pilot bushing, throwout bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlywheel Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBreak-In\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500 street miles recommended, per manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6-speed manual only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e02-06 RSX 2.0L 6-speed and 06-11 Civic Si 2.0L 6-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTrim\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eRSX\u003c\/td\u003e\n\u003ctd\u003eType-S (6-speed)\u003c\/td\u003e\n\u003ctd\u003eK20A2 \/ K20Z1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2011\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic\u003c\/td\u003e\n\u003ctd\u003eSi (6-speed)\u003c\/td\u003e\n\u003ctd\u003eK20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis kit is for 6-speed K20 cars in the 8037 family only. It doesn't fit a 5-speed RSX (that's 8036). It doesn't fit a TSX (that's 8090). It doesn't fit a 2002-2005 Civic Si EP3 unless you've confirmed 8037 against your transmission; Competition Clutch's own body line on this SKU is 2006-2011 Civic Si 2.0L 6-speed. Some dealers also list 02-05 Civic Si and even K24 engines on 8037-0620. Confirm those extras before you order. If you want the complete clutch-and-flywheel 8090 kit that also covers TSX, that's a different family.\u003c\/p\u003e\n\u003ch3\u003eWhat to Know Before You Buy\u003c\/h3\u003e\n\u003cp\u003eBe honest about how you drive. A solid-hub ceramic 6-paddle engages like a switch. You'll get chatter creeping through parking lots, a narrow bite, and a left-leg workout in traffic. If the car is a daily Type-S or 8th-gen Si with bolt-ons, you'll be happier with Stage 2 or Stage 3 on this chassis, or with the sprung 8037-1620 if you truly need Stage 4 hold. Buy 8037-0620 when the power level demands a solid hub, not for the part number.\u003c\/p\u003e\n\u003cp\u003eTake the 500-mile break-in seriously. Shift often, stay out of launches, and let the ceramic pads bed into the flywheel and pressure plate. Skip it and you'll chase chatter and blame the kit. The flywheel isn't in the box, so resurface yours or replace it while the transmission is out. Ceramic pucks will eat a glazed surface.\u003c\/p\u003e\n\u003cp\u003eWhile you're in there, inspect the rear main seal, the slave cylinder, and the clutch master. A tired K-series hydraulic system behind a Stage 4 plate feels worse than the clutch itself. If you're making enough power to need this disc, your factory axles are the next weak link. We'd budget for those while the car is apart.\u003c\/p\u003e\n\u003c!-- FLAGS\nCIVIC SI YEAR FIGHT: CC title\/H1\/meta are RSX 6-speed. Body names 2006-2011 Civic Si 2.0L 6-speed. Spec Make is Acura only. K-Series Parts lists 2002-2011 Civic Si (including 02-05 EP3) plus K24 engines and RSX Base. Real Street lists Type-S \/ 06-11 Si, 6-speed only. Copy follows CC body (06-11 Si) and flags the dealer expansion.\nFLYWHEEL NOTE: K-Series Parts says Must Use RSX Type-S Flywheel. Not on the CC kit page. Mentioned as dealer advice, not a manufacturer spec.\nBODY BOILERPLATE: 230 mm to 250 mm and billet flywheel if applicable. Spec table: Flywheel Included: No.\nSPLINE \/ DIAMETER: Dealers list 24 spline \/ 8.500 in. Not on the CC spec table. Omitted.\nHR ALREADY SELLS: 8037-1620 sprung Stage 4, plus STOCK \/ 2400 \/ 1500 \/ 2100 in the 8036\/8037 family.\n--\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003ch3\u003eFitment\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTrim\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eRSX\u003c\/td\u003e\n\u003ctd\u003eType-S (6-speed)\u003c\/td\u003e\n\u003ctd\u003eK20A2 \/ K20Z1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2011\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic\u003c\/td\u003e\n\u003ctd\u003eSi (6-speed)\u003c\/td\u003e\n\u003ctd\u003eK20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis kit is for 6-speed K20 cars in the 8037 family only. It doesn't fit a 5-speed RSX (that's 8036). It doesn't fit a TSX (that's 8090). It doesn't fit a 2002-2005 Civic Si EP3 unless you've confirmed 8037 against your transmission; Competition Clutch's own body line on this SKU is 2006-2011 Civic Si 2.0L 6-speed. Some dealers also list 02-05 Civic Si and even K24 engines on 8037-0620. Confirm those extras before you order. If you want the complete clutch-and-flywheel 8090 kit that also covers TSX, that's a different family.\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\u003cli id=\"TechnicalData\"\u003e\n\u003cp\u003e8037-0620 is Stage 4 ceramic 6-paddle with a solid hub. Stage 4 is rated up to 250% over stock per manufacturer. This is the 8037 family, not 8090. Flywheel is not included.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\n\n \n\u003cli id=\"Included\"\u003e\n\u003cp\u003ePressure plate, one ceramic 6-paddle disc, alignment tool, pilot bushing, and throwout bearing. A flywheel is not included.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\u003cli id=\"InstallGuide\"\u003e\n\u003cp\u003eCompetition Clutch install instructions require replacing or resurfacing the flywheel and replacing the pilot bearing or bushing. Clean rust inhibitor off friction surfaces before assembly. Use the alignment tool and confirm disc orientation. Do not over-grease the hub.\u003c\/p\u003e\n\u003cp\u003eA 500 to 700 mile break-in with normal street driving is required per the manufacturer install sheet. Failure to follow the published install steps voids the warranty.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n","brand":"Competition Clutch","offers":[{"title":"Stage 4 Solid Hub","offer_id":47266621292578,"sku":"COC-8037-0620","price":550.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/COC-8037-0620_zmq1.jpg?v=1788688168","url":"https:\/\/www.hybrid-racing.com\/products\/competition-clutch-stage-4-kit-rsx-civic-si","provider":"Hybrid Racing","version":"1.0","type":"link"}