Brandon is great. I had the lifter tick issue which caused problems during the 1st attempt to tune. After that was fixed, we were still having power loss at the top-end, and brandon went so far as to change the spark plugs, and swap out the coil-packs from a TBSS in the shop, to diagnose the issue. After 3 days and about 20 pulls and many hours of diagnostics, he got it sorted out. Couldn't be happier with the tune, and the best thing is, he only charged me for the tune, and the plugs.