Upgrade Kit with MF Hi-Torque Steelback Disc; 11" x 1-1/8" x 10T
The M-Pact ST1.5 Upgrade Clutch Kit features a high torque multi-friction disc and is perfect for mildly modified vehicles or aggressive drivers with stock power. The multi-friction disc is unique because it incorporates two different friction materials working to achieve maximum performance and drivability. A steel back lining is used on the flywheel side for smooth engagement and less flywheel surface wear while a segmented sintered ceramic facing on the pressure plate side delivers maximum holding power.
Features:
Offers a 20-40% increase in torque capacity while maintaining a stock pedal feel
Features a matched pressure plate with a heavy duty multi friction clutch disc
Incorporates two different friction materials working to achieve maximum performance and drivability
A steel back lining is used on the flywheel side for smooth engagement, less flywheel surface wear, and delivers increased burst strength and better heat dissipation
On the pressure plate side, a segmented sintered ceramic facing delivers maximum holding and increased grab due to the disc marcel
Precision engineered, heat treated hub, HD retainer and hi-torque springs
M-Pact Clutch Kit Comparison
Kit Level
Designed For
Friction Disc Type
Torque Capacity Increase
Clutch Pedal Feel
OE Replacement
Daily Driving / Stock Vehicles
Organic
None
OE Pedal Feel / Clamp Load
Upgrade Kit with Hi-Torque Steelback Disc
Stock Vehicles or Vehicles With Mild Power Increases
Alloy Backed Organic
Mild
OE Pedal Feel / Clamp Load
Upgrade Kit with Hi-Torque Multi Friction Disc
Moderately Modified Vehicles or Aggressive Drivers With Stock Power
Steel Backed Sintered Ceramic
20-40%
OE Pedal Feel / Clamp Load
Upgrade Kit with Hi-Torque 6 Puck Ceramic Disc
Moderately Modified Vehicles or Aggressive Drivers With Stock Power
6 Puck Cera-Metallic
25-50%
OE Pedal Feel / Clamp Load
Performance Kit with Hi-Torque Steelback Disc
Street, Track & Off-Road Applications
Dual Sprung Alloy Backed Organic
100-150%
Stiff Pedal Feel / High Clamp Load
Performance Kit with Hi-Torque Multi Friction Disc
Street, Track & Off-Road Applications
Dual Sprung Steel Backed Sintered Ceramic
100-175%
Stiff Pedal Feel / High Clamp Load
Performance Kit with Hi-Torque 6 Puck Ceramic Disc
Performance Street, Track & Road Racing
Dual Sprung 6 Puck Cera-Metallic
150-200%
Stiff Pedal Feel / High Clamp Load
Organic vs. Kevlar vs. Ceramic Friction Disc - What Is The Difference?
The Friction Disc is a vital part of any clutch. It connects the pressure plate and flywheel, and is responsible for transferring engine power to the rest of the vehicle. Clutch Kits come with several different types of friction discs, and it is important to understand the pros and cons of each material:
Clutch Disc Material
Smooth Engagement
Holding Power (Friction "Grab")
High Torque Capacity
Lifespan
Gentle To Flywheel
Organic
★★★
★
★
★★
★★★
Kevlar
★★★
★★
★★
★★★
★★★
Ceramic / Cerametallic
★
★★★
★★★
★
★
Tips & Tools For The Job
Wear a Dust Mask to protect against hazardous clutch dust. You can also spray the clutch with water prior to removal to reduce the amount of airborne dust during disassembly.
Use a Flywheel Turner to hold the flywheel in place while removing and reinstalling the pressure plate bolts.
Apply Blue Threadlocker to flywheel bolts prior to installation to prevent backing out due to the high vibrations flywheels are subject to.
Use the provided lubricant to lightly lubricate the splines of the input shaft. Over lubricating the input shaft risks lubricant transfer to the clutch friction disc and can cause clutch slippage.
Be sure to install the new clutch friction disc in the correct direction. The disc will have a "Flywheel Side" label on one side.
Organic vs. Kevlar vs. Ceramic Friction Disc - What Is The Difference?
Tips & Tools For The Job