Engine wiring harness for LS1, 2, 3, 7 engines with MEFI 4B ECU, communication cable, software for tuning spark and fuel tables. Make the changes (real time) you need for your application, displacement, camshaft, compression ratio, heads etc. and can be used for boosted engine applications. Data aquisition is included in software with help information on each screen.
(Optional wide band sensor can provide feed back to monitor air/fuel ratios).
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