Marc's ECM
I am sure this question has been asked already but here goes. Is Marc's ECM simply a plug and go process? If not what is also involved. I am planning a trip from Washington state to NCM. Would like the car running cooler and more efficiently for this trip. Currently stock and runs great.
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Jim
1990 Z # 2441
1959 c-1 230 HP 4 speed frost blue/silver 3 owner
2011 cts-v 556 HP, manual 6 speed
1955 chev 2dr ht PP 265 3 speed w/OD
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