Quote:
Originally Posted by White330
A car running MHD only car can make just as much power as a car running MHD + JB4, but having the JB4 adds some safety features that you wont get running MHD only (check out Mikes post above). IMO the JB4 is good but with MHD BEF it's way better.
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Right, the BEF gets the DME setup to be closer to the actual tuning so the JB4 has less heavy lifting to do on the tuning and and can focus on features, safety, and extras. You also get top notch tuning support, free maps, and a ton of options and flexibility for the car like logging to your smart phone, in dash gauges, on the fly boost by gear adjustment, zero boost valet map, etc.
Mike