fmf megamax pipe and silencer

well im sending the money order out tommorow its $120 with shipping so does anybody know what size or stage jets i should get?

so i only need to change the main jet?

does anybody know which of these kits would work best? Honda 300EX (92-08) DynoJet jet Kit : eBay Motors (item 290401414605 end time Feb-17-10 13:56:57 PST) 1992-2008 Honda 300EX 300 EX Carb Jet Kit : eBay Motors (item 230427532740 end time Feb-20-10 13:50:06 PST) Dynojet Jetting Kit Honda 300EX TRX300EX Dyno Jet Q101 : eBay Motors (item 120525956500 end time Mar-04-10 09:50:32 PST) ps sorry so many post im starting to learn a little bit

well i called the nearest ask powersports and all they could do was order the entire kits for $55+ as for a local honda dealer i have no clue were one is i was only wanting to go threw ebay so my dad wouldnt find out i was changing anything on it......yet ill call around tomorrow to se what i can find