Cale at BTS is pretty good too with the OBS trucks. Might try DP Tuner as well. I can't speak for anybody else, as I only have used those two. /ubbthreads/images/graemlins/smokin.gif
I got the BULLY DOG four position and love it... make sure you order the switch as that does not come with it... but there is no programing to mess with just turn a switch 1 2 3 4... up to you I run in 4 most of the time unless towing then sometimes down to 3 or 2... make sure you have gauges first...
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