MSD RPM Module Kit - 4100-4900 RPM - Odd Increments 931022 CNC-machined from aluminum billet and

CNC-machined from aluminum billet and black anodized for a professional appearance

Lightweight billet aluminum Radius Tooth HTD alternator pulley

Your Choice of Tailpipe Exits

Features:For cylinder per cylinder management

MSD RPM Module Kit - 4100-4900 RPM - Odd Increments 931022 CNC-machined from aluminum billet andRPM 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