HMF Jet Kit

I have an 05 Rancher 350 4x4. I ride every Sunday here in WV. I ride on mud, dirt, rock and water. I use it for hunting and trail riding - trails here can have great (or nasty depending on your preferences) mud and rocky terrain. I'm looking into the HMF utility pipe and found several on EBay with an HMF jet kit at a decent price. I tried their website but can't figure out if this kit includes everything I'll need to rejet like the dynojet kits seem to. Will it be more limited than the dynojet kit? I'm planning on a K&N air filter soon also. Will this kit be enough or should I find a separate pipe and buy the dynojet kit?