as long as the batt has the same connectors you wont so try to look at the connectors on the battery and make sure it is the same as the slash. I run deans plugs on my brushless rc's even my micro brushless rc's. but I know alot of people that still use the stock traxxas connectors, and I havent seen any difference.
---------- Post added at 8:42 AM ---------- Previous post was at 8:39 AM ----------
oh the only other thing is posibly some softer tires or just a better tread pattern for grip. Although being 4wd you might not need to.