Originally Posted by holmes011
i know im going to probably going to get shit on for this but whats the difference between flash and piggyback? i did research and it got me here but i still am unclear
A piggyback physically plugs into the DME in the car and alters signals to achieve desired results. A flash reprograms the DME logic/tables to achive desired results. It's normally done by using either the OBD2 port or a "bench load" where your ECU is mailed to the flash supplier.
FOR THE LOVE OF GOD do not ask which is better.