MSD Ignition 8736 Launch Rev Limiter adjust RPM in 5 gears ! were 155 BARGAIN !MSD 8736 Launch selector shift light adjustable rev limiter for up to 5 gears plugs straight into your MSD ignition DIS 2. not sure about other MSD AL etc. and allows different rpm for different gears get a real bargain these retail at over 130 ONLY WORKS with MSD. ignitions CANNOT BE ADAPTED TO OTHERS this is proper race item for racing not street cars or diesels! Rev Limiter, Manual Launch Control, Adjustable 3,000 12,500 rpm, 100 rpm Increments,