Mods for motocross

[Shoreracing]

Does anyone know any mods for the 450i have the xmx package front and rear stock upgraded clutch. Bcs wiring harness on the way. Fox rear shocks 8in rear 20-7-10 front k&n filter flex bars motoworks sr4 slip on I need some hp and mods to do to the bike

[hcomras]

Ron woods stage 1 kit can't go wrong dyno proven 48rwhp 31ft/lbs tq. Or rossier or motoworks

[XC.Mitch]

I would do a port an polish and def! Get a precision stabilizer

[seank360]

lower the subframe to, helps alot!

[Jaredp]

Quote: Originally Posted by hcomras

Ron woods stage 1 kit can't go wrong dyno proven 48rwhp 31ft/lbs tq. Or rossier or motoworks

+1 try a decent pipe like the ones listed and good Air filter/Intake setup cut the pink wire. Try this for a race or two if its not enough port work/cams or a higher compression piston will yield your next biggest money for horsepower gain. What ever company you choose, stick with it everything builds on previous power upgrades.

[hcomras]

x2^^^ dont try and mix and match, companies like rossier and ron woods make their parts to work with each other VERY WELL. also, consider a piggyback fmi unit, like the motoworks fmi or the dynojet pc3, and then get the bike dyno tuned. there are downloadable maps but a custom tune will serve you much better since every bike is a little different...

[Shoreracing]

Where can I get it ported and polished an how much

[venom108]

They really don't port this machine they epoxy the intake cause it flows too much. Check out rossiereng website and they have prices, but you need cams with the epoxy.

[Shoreracing]

What do you think about high comp piston and both cams

[XC.Mitch]

I would stay away from the piston myself, once you up the compression the engine will need maintenance more then usual. Plus for the labor and money you won't see a very big horsepower increase.