MSD RPM Module Kit - 4100-4900 RPM - Odd Increments 931022 Screen is high strength stainless

Screen is high strength stainless steel (3/4" mesh is crimped

Bell's forced air helmetS feature the new Quick Lock forced air nozzle that locks the forced air conector in place yet allows for easy release when its time to exit the vehicle

Your Choice of Tailpipe Exits

dirt track cars

MSD RPM Module Kit - 4100-4900 RPM - Odd Increments 931022 Screen is high strength stainlessRPM Module Kits include five modules in 200 rpm increments. Each kit is within a 1, 000 rpm range. Each kit is within a 1,000 rpm range. For example, the PN 8745 is supplied with: 5,000, 5,200, 5,400, 5,600, 5,800 modules. Product Description: RPM Module Chip 4100 4900 RPM 200 RPM Increments Odd Kit Racers never stop experimenting as they search for every way to wring out more power or handling performance to to gain an edge over the competition. The