I like the PPs, more from a perspective of colors and construction, as well as visual appeal. Love the pipes, ECU is re-mapped for the pipes and porting. I personally think the stock track is the worst thing about the sled. The extreme is superior in slow maneuvers, vastly so in downhill control, trackspeed is up, top speed is up, point of turnout is alot higher, maybe sacrificing a little in hardpack. As for the Boss Seats, there are some issues mainly with zippers, maybe 1 out of 10. This stems from the massive increase in volume due to lower pricing and also the methods that alow them the reduced price. Its still the same underpinnings, the covers are outsourced, they are working on it.