As posted got a 103 big bore kit including SE Flat Top Pistons etc and Cam for my 07 Night Train, just clocked up 1,000K's and the thing is awesome. The upgrade is starting to loosen up and the auto tune is kicking in....awesome. The thing is goin like a cut snake. Even happer with the thundermax

I have done over 30,000ks with my Thundermax its been running great since I installed it very happy with it

never had one but must be good you guys seem happy

yer good things, had tts wasn,t suited for where i live at least the t/max changes to the enviroment i,m in, just fitted 583 cams to stock 96 cub bore and heads, got fucken good torqe to the ground now, thundermax are a good unit pricey but worth the hassle free set and forget. bike is more responsive as it maps itself

Me too , have TM fitted to both , my nightrain for last 4 years, and fitted it to my Street Glide over 12 months now.
Both auto tune units but I check for updates every few months and refresh the maps.
All brands of units will have a percentage failure rate.