bikerz Known Member Senior Member Joined Nov 21, 2008 Messages 213 Points 1,518 Mar 21, 2010 #1 my car is auto, and i juz mod the exhaust at JFA to have straight flow. so, i'm thinking to re-map my ecu, or install piggyback better? if i use SMT, will my ECU relearn by itself (back to stock mapping)?
my car is auto, and i juz mod the exhaust at JFA to have straight flow. so, i'm thinking to re-map my ecu, or install piggyback better? if i use SMT, will my ECU relearn by itself (back to stock mapping)?