Those are some good out of the box Upgrades right there. I installed my new Voltage Shock Towers 2 days ago and bashed them for the first time yesterday. Aside from being pretty they look amazingly tough.
I think that @Voltage Hobbies Steering Rack is the most under rated upgrade out there. I did very little bashing before I managed to hit the post on a soccer goal. That crash stripped out the stock servo, and I was in the shop. Went home and ordered the Savox, and a GKA mount. The GKA got stuck in the postal system for a month, ( no fault of GKA) and while I waited I shopped for upgrades. I ended up with the Voltage Steering Rack as one of the parts I bought. When I finally got to dive in and do the work, I pulled the stock steering rack out, and it was badly bent. No way the VOltage Rack is going to bend like that...no way.