This is the Traxxas On-Board Temperature Gauge. Great for monitoring engine temperature during operation, which could easily pay itself off in longer engine life. This will also help you get more performance out of your engine.

This is the Dynamite Nitro Glow Plug Wrench.  Gas R/C racers can install and remove glow plugs from their engines with ease, speed, and style with the Dynamite Nitro Wrench.