"The USB programmable 123TUNE-4-R-V-V is designed for VW 4 cylinder engines
For Bosch D-Jetronic Injection engines the non programmable unit is available: 123VW-4-R-V-IE
If you want to tune your engine, or you have an engine for which there is no standard distributor available..... And you are a Windows PC user, the 123TUNE is the answer! By connecting it to a computer, you can easily adapt the 123TUNE to fulfill even the most demanding requirements. The unit offers two sets of curves that can be selected by placing 12 Volt on a wire from the 123TUNE. Handy, if you're driving on two different fuels, like regular fuel with LPG or with EthanolV" is suited to replace many Bosch distributors ( VW, Porsche, Volvo)
