Hey all, Just looking at an old subsciption of Atv action and noticed a story about a TRX300 4wd that had been turned into a a 420! has anyone done this to their 300 and if so what were the results.

Also has anyone heard anything about the Detroit unlocker from highlifter and when its supposed to be out.

 

i know that theres a 355 kit that hl used to make i'm not sure if they still do...theres a 380 kit..never heard of the 420 kit but i heard the four stroke tech was coming out with a 475 kit.....my personal opinion would be the 380 any bigger and you would be breaking parts left and right