Teryx more power?

[Spicoli]

Hey guys wanted to know what is the best mod for a 2010 Teryx for a couple hundred bucks. I want to buy my Dad something for his ride. The Teryx tops out at 50 or so MPH. Does the MSD EFI controller make a big diff alone? or is there a better way to spend the money?

[ek98]

muzzy and msd is the best

or if you just want top end an OD plate for 150 would give you 5-10mph top end and lower your cruising rpm

[Spicoli]

What is the overdrive cover I have been hearing about?