ORIGINAL: Pat McGroin
Best upgrade you don't have yet is tekno rc big tank kit and battery relocation. I have a 250cc tank on my revo and love the run times. Best upgrade besides center diff. and big block.
Yeah that's yet another one that I want to do at some point... longer run times... good~!
I think after I upgrade the radio, I'll get the single steering servo so I can do that.
Some others to think about are upgrading the drive train to all steel MIP parts, a tekno sway bar kit and a rear brake kit
What did you upgrade your center diff too?
You might take a look at this website too it has some good info. Balancing your wheels/tires is a good one!
http://www.e-maxximumrc.com/html/revo.html