Competition Clutch Stage 2 Kit for K20A/Z & K24A2/Z7

Competition Clutch Stage 2 Clutch - K20A, K20Z, K24A2, and K24Z7

Looking for a real upgrade over stock without jumping to an on/off race clutch? This Competition Clutch Stage 2 Clutch Assembly (Competition Clutch 2100 Series, SKU: COC-8090-2100ST) hits that sweet spot for K-series cars. It fits K20A2, K20A3, K20Z1, K20Z3, K24A2, and K24Z7 engines, so you’re covered if you’ve got a 2002–2005 Civic Si, 2002–2006 Acura RSX, 2006–2011 Civic Si, 2012–2015 Civic Si, or 2004–2008 Acura TSX. We run this same style Civic Si stage 2 clutch on our own cars when we want something that’ll hold power but still behaves in traffic.

This Competition Clutch Stage 2 setup bumps torque capacity by about 80% over stock, which is exactly what you want on a mildly built K or a bolt-on/tuned daily that sees the occasional drag pass or track day. It’s aimed at aggressive street use and moderate track work, not a brutal multi-puck race unit. Pedal effort goes up a bit versus OEM, but it’s very livable if you daily the car.

The disc uses Competition Clutch’s Brass Plus material with an alloy backing and a matched performance pressure plate. In real terms, that means it grabs harder than stock, sheds heat better, and doesn’t explode if you miss a gear at high rpm. Engagement stays predictable and smoother than a typical ceramic puck, so if you’re coming from a worn OEM clutch, this will feel firm but not miserable. If you’re hunting a carbon kevlar clutch Civic Si style feel, this sits in that middle “street/track” zone — more bite than organic, less harsh than a full race setup.

This is a full stage 2 clutch kit includes the clutch plus a lightweight 16 lb flywheel. Dropping flywheel weight lets the motor rev quicker and makes the car feel more eager. The tradeoff: you’ll notice a bit less inertia when taking off from a stop, and some people notice slightly more drivetrain noise at idle.

Break-in matters here. Competition Clutch calls for a 500-mile break-in, with at least 300 miles mandatory. That means no clutch dumps, no hard launches, and minimal full-throttle pulls until you’re past that point. If you skip it, you’ll glaze the disc and wonder why your “new civic si stage 2 clutch” slips. Do the miles, let it bed in, and it’ll live a long time.

Included:

• Performance pressure plate
• High-torque sprung disc with anti-burst, steel-backed Brass Plus facings 
• Light steel flywheel
• All required bearings
• Alignment tool