When choosing a clutch it is very important to match the appropriate horse power and work load.
SD Max Con O – Performance Organic – 375 RWHP, 700 ft. lbs. torque
SD Max Con CB – 8 Ceramic Buttons – 425 RWHP, 800 ft. lbs. torque
Do not try and save money when it comes to choosing a clutch. This will only cost you more in the long run.