Hi i have a 2003 blaster and i am needing some info on a coupple of things please tell me everything you know

1 I want either the Toomy kit or the FMF SST With SST Silencer. I do mostly trail and field riding and sometimes like on weekends we go to a tract and race but that like one time ever 2 months. Whick pipe whould be the best i dont race so that might help. And i dont want to have to be fixing crap

2 Should i get a rad Vale or just reeds or just get the pipe and silencer and a air filter and leave it at that?

3 i am also geting razor 2s rear tires