So i'm getting 2500$ from my tax return and i've decided to put it all into the raptor. Currently i have a ims roll design steering stem, asv levers, full flight racing +2 a-arms, trail Tech x bars, aluminium oil tank, aluminum airbox w/ 2 k&n air filters, elka shocks, billet bearing carrier, um nerf bars, um grab bar, kevlar clutch, itp wheels and maxxis tires. i want to get exhaust and i have been checking out the dual fcr 39mm carbs. i've been looking at ct exhaust or curtis sparks exhaust. I've been considering doing a big bore kit but i'm not sure if i want to go that crazy. I for sure am buying a new axle because i have a stock axle. any other advice would be greatly appreciated. my goal is to smoke my buddies trx450r with the hrc kit.