Hey there, fellow gearheads! If you're looking to take your Honda Prelude to the next level, the ACT HD/Race Sprung 6 Pad Kit HP4-HDG6 is worth checking out. This kit packs a punch with ACT's heavy-duty pressure plate, which is pretty much the gold standard for performance clutches. The unique diaphragm design cranks up the clamp load while keeping deflection to a minimum, which means your clutch is going to last longer and work harder. Seriously, they've put these diaphragms through a four-stage heat-treating process that really makes a difference in performance.

Now, let’s talk about the 6-pad, spring-centered race disc. This thing is designed to handle some serious torque and is great for high horsepower applications. It dampens those annoying torsional vibrations and is built to resist failure, even when you’re pushing your Prelude to the limit. Plus, the engagement is a bit harsher, but that just means your shifts are going to be quicker. If you're running a larger clutch size, this disc can absorb more heat, which is a big win for anyone who likes to push their ride on the street or the track.

As for the installation, you can find the instructions right here. It’s straightforward, but make sure you have a buddy to help out—trust me, it’s always easier with two sets of hands.

Here’s a quick rundown of what you’re getting:

• Light to moderate pedal effort—perfect for daily driving but still aggressive when you need it.
• Moderate friction life, thanks to that clever diaphragm design that ACT has cooked up.
• Precision-engineered with select ceramic friction materials, so it can take the heat and keep performing.
• Ideal for high horsepower street or race setups—this isn’t just for show.
• Every unit is 100% clamp load tested and dynamically balanced, ensuring smooth operation at high RPMs.

Specifications:

• Clutch Master Cylinder: Not included
• Grease: Yes, it’s included
• Grade Type: Performance
• Pressure Plate Type: Heavy Duty
• Release Bearing: Included
• Clutch Disc Diameter: 8.7 inches (220 mm)
• Disc Material: Ceramic
• Input Spline Quantity: 24
• Input Shaft Diameter: 1.03125 inches
• Alignment Tool: Yes, included
• Disc Type: Sprung Solid
• Pressure Plate Bolts: Not included
• Clutch Slave Cylinder: Not included
• Flywheel Bolts: Not included
• Product Weight: 13.5 lbs
• Torque Capacity: 310 ft/lbs
• Torque Capacity Over OE: 0.83

This kit is specifically designed for the Honda Prelude 1990-1991, so if that’s your ride, you’re in luck. It’s time to upgrade and feel the difference on the road. Happy driving!