fuel mapping

I have a 2011 rmk 800 (non-pro) 155" that has the followinmg mods: RkTeck "Drop-In" kit Straight-Line Performance Ceramic single pipe and a Sno-Stuf Can I was told because of the RK YTek kit and the aftermarket pipe and can that i had to run a fuel controller.. I acquired an Attitude...

I read an add for a Dyno-Boost performance chip. Has a 10 yr warranty, supposed to boost both HP and torque 15%, while increasing fuel economy 6%. sells for 170$. Basically remaps the factory fuel/air mix of 14.7:1 ( they referred to stoichiometric fuel mix) to a richer mixture. Apparently the...