NOW AVAILABLE
FREE ECM FLASH ON GM LS SERIES AND GEN III TRUCK ENGINES WITH PAINLESS EFI HARNESS PURCHASE

Purchase a Painless Performance EFI harness for a GM LS or Gen III truck engine that uses a factory ECM and we will flash the computer to remove vehicle anti-theft codes, set gear ratio, adjust tire size and change idle, maximum RPM and top speed settings.  All this for only $15.00 to cover return shipping and handling.  For complete details click here.

OR TELL US WHAT YOU ARE WORKING ON?