i was thinking about a kn power kit or maybe a highlifter power kit ( kn jet kit plus a super trapp muffler) what do you guys think? is there anything else i could do without any major engine work?

 

I have a stock Praire 300 also, and am interested in boosting the tire size up to 26"/with aluminum rims. Right now I am all stock, if you get the add ons and it boosts power , I would like to know
In the Mud Always , Kaptnnemo

 

Remember, you asked what I THINK! This is opinion, offered as such.

Without radical hop-up efforts (as in boring, stroking, camming, porting, polishing, etc.), the Prairie is a poor candidate for modification.

A single-cylinder two-valve four-stroke like the Prairie 300's engine is limited by its ability to breathe--not enough valve area.

Yeah, you can get modest increases by camming and piping, mods that may require slight jetting changes; but--don't expect miracles.

If you want to go fast, you'd probably save money, get more power, and improve reliability by buying a Praire 650.

Diogenes