If you're serious about your ride and want something that can handle the heat, the Advanced Clutch XT/Race Rigid 4 Pad Kit Z64-XTR4 is worth a look. This kit is built for those who really push their machines to the limit. The Xtreme pressure plate in this setup is no joke. It’s designed with a unique diaphragm that cranks up the clamp load, cuts down on deflection, and really extends clutch life. Trust me, you’ll appreciate the difference when you’re out there on the track or just hitting the back roads.

What’s cool is that each diaphragm goes through a four-stage heat-treating process, so you know it’s tough enough to take whatever you throw at it. The precision cover stampings mean you get a solid, consistent feel every time you shift. Now, let’s talk about those 4-pad rigid race discs. They’re made from high-quality ceramic friction materials, which means they can handle high temps without breaking a sweat. Plus, the chrome-moly hub is heat-treated for added strength. This lightweight design lets you shift quicker, but be warned—the engagement is definitely on the harsher side. If you’re looking for smooth shifts, this might not be your best friend, but if speed is your game, you’re in the right place.

Just a heads up, this kit is really geared towards smaller engines and disc sizes, so if you’re running a compact setup, it’s a solid match. Here’s a quick rundown of what you can expect:

• Pedal effort is moderate to heavy, so be ready for some workout.
• Engagement is aggressive—perfect for race conditions.
• Friction life is moderate but extended thanks to that special diaphragm design.
• Designed for race use only—this isn’t your everyday clutch.
• Every unit is 100% clamp load tested, so you know it’s reliable at high RPMs.

Now, let’s get into the nitty-gritty specs:

• Clutch Disc Diameter: 9.4 in (240 mm)
• Input Spline Quantity: 23
• Input Shaft Diameter: 1 in
• Torque Capacity: 560 ft/lbs (1.3 times over OE)
• Product Weight: 14.7 lbs
• Disc Material: Ceramic
• Alignment Tool Included: Yes
• Grease Included: Yes
• Pilot Bearing Included: Yes
• Release Bearing Included: Yes

As for fitment, this kit works great with:

• Ford Probe (1989-1992)
• Mazda 626 (1988-1991)
• Mazda MX-6 (1988-1992)

So, if you’re looking to boost your clutch performance and you’re ready to handle the demands of race conditions, the Z64-XTR4 kit might just be what you need. Just be prepared for a more aggressive driving experience!