I have yet to do a thing to my Outcast except fool around with the servo saver, set my droop and set end points. I jump it plenty and general beat the crap out of it. Have had my Kraton longer and have only upgraded the servo, mount and bumpers. Broke a few arms and blew out some bearings but that’s it in the Kraton and it spends a lot of time in the air. They don’t “need” much upgrading imo. My advice is Loctite your servo saver where you like it, (everyone complains about the servo but it’s the servo saver 90% of the time) buy more batteries, good charger, good tools, some fluids (read up on which ones maybe 200k in the center diff to start and some 70-75wt shock fluid for servicing) extra set of arms, wing mount, servo, tbr bumper, plastic ramps for practice and a second car before upgrading everything. Then spend a lot of time driving it and get to know the car/truck and if you feel something is holding it back or keeps breaking upgrade. If your car is set up correctly you won’t break much unless you hit stuff at full blast. Then no apgrading will help that. Most of all have fun, (sometimes upgrading is part of the fun) and learn to really drive the thing. Congradulations and best of luck with it.