JMS Performance Group consists of three brands

Leading The World in Electronic Performance Products!

JMS Chip & Performance

Plug N’ Play Performance Parts for Cars and Trucks

Daytona Twin-Tec

Performance Ignitions for Harley-Davidson Motorcycles

Daytona Sensors

Engine Control for Performance and Racing

JMS - Street Legal Performance - PedalMAX, FuelMAX, FleetMAX Speed Limiting
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