If you're looking to upgrade your clutch setup, let me tell you about the Advanced Clutch HD/Race Rigid 4 Pad Kit Z65-HDR4. This kit packs a serious punch with ACT's Heavy Duty pressure plate, which is a favorite among enthusiasts for good reason. The design is all about performance—thanks to an exclusive diaphragm that boosts the clamp load and minimizes deflection. What does that mean for you? Better clutch life and more reliable shifts, which is exactly what you want when you're pushing your vehicle to the limit.

Now, let’s get into the nitty-gritty. ACT doesn’t cut corners; their pressure plates go through a rigorous four-stage heat-treating process. This means you’re getting a product that’s built to last. The precision cover stampings add to the rigidity and consistency, so you can count on it when you’re racing or just enjoying a spirited drive.

The 4-pad rigid race discs are where things get really interesting. Made from high-quality ceramic friction materials, these discs are tough and ready for action. The chrome-moly hub is heat-treated, which gives it the strength and durability you need for those high-stress situations. Plus, the lightweight design means quicker shifts and a smoother experience overall. Just a heads up, though—the engagement is a bit harsher, but that’s the trade-off for faster shifting. If you’ve got a smaller engine, this setup is perfect since it’s designed to work well with smaller disc sizes.

Installation is straightforward, and if you need a hand, you can find the install instructions here.

Features:

• Light to moderate pedal effort with aggressive engagement—perfect for those who want to feel every shift.
• Moderate friction life, but don’t worry, ACT’s diaphragm design helps extend it.
• Engineered and balanced for high RPM reliability—this thing is ready to perform.
• Best suited for race use, so if you’re hitting the track, this is your clutch.
• 100% clamp load tested to ensure you’re getting the best performance.

Specifications:

• Clutch Master Cylinder: Not included
• Grease: Yes, included
• Grade Type: Performance
• Pilot Bushing: Not included
• Pressure Plate Type: Heavy Duty
• Release Bearing: Yes, included
• Clutch Disc Diameter: 9.4 in (240 mm)
• Disc Material: Ceramic
• Input Spline Quantity: 23
• Input Shaft Diameter: 1 in
• Alignment Tool: Yes, included
• Disc Type: Solid
• Pressure Plate Bolts: Not included
• Clutch Slave Cylinder: Not included
• Flywheel Bolts: Not included
• Pilot Bearing: Yes, included
• Product Weight: 14.4 lbs
• Torque Capacity: 420 ft/lbs
• Torque Capacity Over OE: 0.72

Just a note: If you're using this kit, make sure your flywheel has a counterweight, as that’s not included.

This kit is made for the Mazda RX-7 (1986-1992), so if you’re looking to give your ride a serious upgrade, this is a solid choice. Trust me, you won’t regret it.