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      02-15-2012, 11:30 AM   #83

Drives: Cobb Stage 2+ 135i
Join Date: Apr 2011
Location: Roanoke, VA

Posts: 2,197
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Originally Posted by holmes011 View Post
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.

Last edited by rader1; 02-15-2012 at 12:18 PM.