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Precision Automotive's programmable Delphi ECM is adaptable to almost all EFI systems in four-, six- or eight-cylinder applications. It will require some mods to the EFI electrical harness to install. This is the way to go when your engine is modified beyond the stock ECM's ability to compensate. TO program, you need only a modest laptop with Windows 95 of up, a special program that's available from Precision, and patience.