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Old 12-09-2012, 04:45 PM
bear-avhistory's Avatar
bear-avhistory bear-avhistory is offline
2014 435M-Sport/MPPK
Location: Raleigh NC - USA
Join Date: Nov 2006
Posts: 3,764
Mein Auto: 2014 435M-Sport/MPPK
G5 is the new circuit board that is now standard in the JB4. It has more processor speed & memory than the G4 or original board. ISO is a beta system that is being tested that divorces boost control from the stock ECU.

FMIC = Front Mounted Inter Cooler. I have replaced the stock unit for a higher capacity one. I got the JB4 because it best suited what I wanted to do, has the largest user base & IMHO has the best product support.

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Last edited by bear-avhistory; 12-10-2012 at 07:44 AM.
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