VW GOLF JDM ProM Car Performance Chip ECU OBD2 Plug and Play (Up to 40HP/40TQ) Adaptive
True 100% Plug and Play Designed and Produced in USA - The ProM replaces timing and fuel delivery values stored in the ECU's temporary memory with optimized values. This produces the same results as expensive ECU upgrades, for a fraction of the cost. Does not alter rev and speed limiters.
