Dynojet Clutch Kits were designed from the ground up. Each kit contains fully adjustable arms with precision magnetic weights. Dynojet's clutch kits allow for smooth engagement and delivers the power when you need it. The clutch weights have been specially crafted for the pDrive primary clutch to ensure the shift is smooth and you feel every ounce of performance your X3 has to offer.All kits are developed on our in-house Dynojet Dyno and field tested to ensure maximum performance in all riding conditions.