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Thanks vr401. God bless you!! After i switchd  the evo 3 ecu and i replace the rvr airflow sensor to evo 3 airflow sensor did i still need to remap or tune with piggyback for better perfomance?Actualy what is the different in between rvr hypergear evo 3 spec and origin evo 3? As i know rvr hypergear has a detune ecu. 8.5 compression ratio. Less agressive cam. I only wish that i can get a simple tune and mod so that the my rvr engine will become more agressive as evo 3 or more. One more time, thousands thankssss!!!  this help me the alot.. im proud to become 1 of a 4G family here..