I do not currently have a slayer pro but i do have electric 4x4 stampede. I like my pede a lot but most my friends run nitro, so i was wondering if i got a slayer roller chassis what would be upgrades to do it. Things like suspension, engines, differentials, just any upgrade really. Cost is sort of an issue im a college student so i can get the money but it may take a while so i know the engines and stuff its really you get what you pay for but i know some suspension stuff and axle shafts things like that the more expensive option isn't always better. Any input would be appreciated.