MSD Pro-Billet distributors are engineered using 6061-T6 aluminum billet and manufactured using precise CNC machines for exact tolerances. The sealed ball bearing offers high-speed stability and a QPQ coated shaft offers optimum friction reduction and corrosion reduction. The reluctor is machined with a precision that triggers the magnetic pickup mounted in the housing. Reduced moving parts decrease the wear and tear and the pick-up on these distributors by MSD is maintenance-free. It also features a mechanical advance assembly just above the pickup. Springs and stop bushings offer an easy way to custom-tune your advanced curve according to your requirements.