Competition Clutch Stage 1.5 Clutch for RSX/06-11 Civic Si

Competition Clutch Stage 1.5 Clutch - 2002-2006 Acura RSX Type-S / 2006-2011 Honda Civic Si

Your stock clutch is slipping on your RSX Type-S or 8th gen Civic Si, and you don't want a stiff leg-day pedal every time you drive to work. That's exactly what the Competition Clutch Stage 1.5 solves. It gives you 40-50% more clamping force over the factory clutch and keeps the pedal feeling completely stock. Organic friction material means engagement is smooth - no chatter, no aggressive grab, nothing that'll make your passengers question your life choices.

This clutch is built for mildly modified K-series cars. We're talking intake, header, exhaust, and a tune. If that's your build, this is your clutch. If you're running a turbo or any kind of boost, stop here - you need a Competition Clutch Stage 2 Street Clutch for K20A2/Z1/Z3 or higher. The Stage 1.5 will slip under serious power, and that's not a "maybe" - it's a guarantee.

40-50% More Torque Capacity, Same Pedal Feel

The whole point of the Stage 1.5 is that you shouldn't have to choose between holding power and a livable daily driver. Most performance clutches jump straight from stock replacement to "your left leg is now your strongest body part." Competition Clutch hits the middle ground here. The pressure plate clamps down harder, the organic disc keeps engagement predictable, and your daily commute doesn't turn into a workout. If your stock clutch is slipping under hard pulls in third gear, this fixes that. If it's not slipping yet, you don't need this - stick with an OE replacement and save your money.

Built for Bolt-Ons, Not Boost

Be honest with yourself about your build. This clutch handles naturally aspirated K20 bolt-ons without breaking a sweat. Pair it with something like the DC Sports Ceramic Coated Header for 02-06 Acura RSX Type-S and a cat-back, throw a tune on it, and you're done. But the moment you add forced induction, you've outgrown it. A turbo or supercharger can push torque spikes way past what this pressure plate can hold, and a slipping clutch under boost does real damage fast. If you're going that route, look at the Competition Clutch Stage 2 Street Clutch for K20A2/Z1/Z3 or the Competition Clutch Rigid Twin Disc (K20A2/A3/Z1/Z3) for serious power levels.

Civic Si Owners: You Need the RSX Type-S Flywheel

If you've got an 8th gen Civic Si, your factory flywheel won't work with this kit. You have to run the RSX Type-S flywheel. That's not a suggestion - the clutch physically won't fit correctly otherwise. Plan for that cost upfront. And regardless of which car you're on, resurface or replace your flywheel when you install a new clutch. Putting new friction material against a scored flywheel is a waste of your money and your time. Check out the Competition Clutch Light Steel Flywheel for K20A2/A3/Z1/Z3 or the Competition Clutch Ultra-Light Flywheel for K20A2/A3/Z1/Z3 to pair with this kit.

Break It In or You'll Regret It

300 miles of easy driving before you beat on it. No hard launches, no slipping the clutch up a hill, no track days. The friction material needs to bed into the flywheel face evenly, and if you skip this step you'll end up with hot spots, inconsistent engagement, and a clutch that never holds the way it should. Follow the break-in sheet that comes in the box. It's there for a reason.

What's in the Box

• Performance pressure plate - 40-50% more clamping force than stock
• Organic clutch disc with sprung hub - smooth, stock-like engagement
• Throwout bearing (release bearing)
• Pilot bushing
• Alignment tool

Fits

• 2002-2006 Acura RSX Type-S (K20A2, K20Z1 - manual transmission only)
• 2006-2011 Honda Civic Si (K20Z3 - manual transmission only)

Compatible Engines

• K20A2 - 2002-2004 Acura RSX Type-S
• K20Z1 - 2005-2006 Acura RSX Type-S
• K20Z3 - 2006-2011 Honda Civic Si

Important notes: Naturally aspirated bolt-ons only - no turbo, no supercharger. Civic Si requires the RSX Type-S flywheel (stock Civic Si flywheel is not compatible). Resurface or replace your flywheel at install. 300-mile break-in required - no hard launches or track use during break-in. Manual transmission only.