Clutch Masters FX300 Stage 3 Clutch for RSX/TSX/Civic Si

Clutch Masters FX300 Stage 3 Clutch Kit - K-Series Honda & Acura

When you've built up your K-series and the stock clutch starts slipping under the new power, the FX300 is the upgrade a lot of enthusiasts land on, and for good reason. It's been one of Clutch Masters' most popular single-disc clutches for years, because it hits a sweet spot: it holds 110% more than stock, so it grips serious power, but it still drives civilized enough to daily. It's built for the highly tuned street car, and it does that job better than almost anything in its class. If you've added head work, cams, a medium-boost turbo or supercharger, or up to 100 horsepower of nitrous, this is the clutch that keeps it all hooked up.

Is The FX300 The Right Stage For Your Build?

This is the most important question to answer before you buy, because clutch stage is where people make expensive mistakes. Go too light and it slips under your power. Go too aggressive and you've turned your daily into a chore with a brutal pedal and an on-off grab. The FX300 is a Stage 3, and it's aimed squarely at the built street car. It's the right call if you've got a naturally aspirated engine with cams and head work, a medium-boost turbo or supercharger setup, or nitrous up to 100 horsepower. What it's not built for is dedicated track duty, Clutch Masters specifically recommends the FX300 for the street, not the track, so if your car lives at track days and drag strips, you want a more aggressive stage instead. For the fast street car that still gets driven every day, though, this is the one.

Why The Segmented Kevlar Disc Works So Well

Here's what makes this clutch hold power without beating you up. The FX300 pairs the Power Plus I heavy-duty pressure plate with a steel-backed segmented Kevlar disc, and that segmented format is the clever part. By breaking the Kevlar into segments, Clutch Masters packs more pounds per square inch onto the friction surface, which means more torque-holding capacity in the same space. And Kevlar is non-abrasive, so unlike some aggressive materials, it won't score up your flywheel or pressure plate surfaces. The payoff is a clutch that grips hard, engages positively, lasts a long time, and only adds a slight bump in pedal pressure. You get the holding power without the punishing daily-driver feel that scares people off higher-stage clutches.

Read This First: Base Models Need A Type-S Flywheel

This is the fitment catch that trips people up, so check it before you order. If you're installing this in a base-model car (a non-Type-S RSX, a base Civic, and so on), you must use a Type-S flywheel for everything to integrate properly. The clutch is built around that setup. So if your car didn't come with the Type-S drivetrain, factor a Type-S flywheel into your plan and your budget. Skip this and the parts won't play together correctly. If you're already running a Type-S or K-swap with the right flywheel, you're set.

What's In The Kit

This is a complete kit with everything you need to do the job right:

• Power Plus I heavy-duty pressure plate
• Steel-backed segmented Kevlar clutch disc with heavy-duty sprung hub (where applicable)
• Marcel spring wafer for smooth engagement
• OEM-or-better release bearing
• Pilot bearing (where applicable)
• Alignment tool, instruction card, and decals

Break It In Right

One piece of advice that matters on this clutch specifically: there's a minimum 500-mile break-in period, and it's not optional. A Kevlar clutch needs those miles to properly seat the friction material, and skipping the break-in is one of the fastest ways to shorten its life. Take it easy for those first 500 miles, let it bed in, and you'll be rewarded with a clutch that lasts. Rush it and you're gambling with the longevity you paid for.

Fits Your K-Series Honda Or Acura

This kit covers a wide range of K-series Honda and Acura applications:

Remember that base-model cars require a Type-S flywheel for proper fitment. Confirm your setup before ordering.

Who Should Run The FX300

This is for the K-series owner with a built street car that's outgrown its factory clutch. You've done the head work, added the cams, bolted on the turbo or supercharger, and now you need something that'll actually hold the power without turning your daily commute into a wrestling match. The FX300 is that clutch, strong enough to grip a seriously tuned engine, smooth enough to live with every day, and proven over years of builds just like yours. Sort out your flywheel, break it in right, and go enjoy a clutch that finally keeps up with your engine.

Fits: 2002-2006 Acura RSX and RSX Type-S, 2004-2008 Acura TSX, 2003-2007 Honda Accord, 2002-2011 Honda Civic Si, 2002-2006 Honda CR-V, 2003-2011 Honda Element (K-series). Stage: 3, street-focused. Holding capacity: 110% over stock. Pressure plate: Power Plus I heavy-duty. Disc: steel-backed segmented Kevlar with sprung hub (where applicable). Good for: built N/A with cams/head work, medium-boost turbo or supercharger, or up to 100hp nitrous. Not recommended for: dedicated track use. Important: base models require a Type-S flywheel. Break-in: 500-mile minimum required.