Hop-Ups for the DTM sp are:
1. Carbon Fiber Chassis kit
2. Bearings (6)
3. Spur Gears: 40, 42, 44, 46, and I believe, there's also a 48. I could be wrong.
4. different compound tires
5. 180 sized motor
ABC, straight out of the box, is pretty much race ready, with the exception of bushings, and motor. These will have to be replaced with ball bearings and a 180 motor.
Parts and Hop-ups are at the moment, available through
www.Horizonhobby.com go to "browse brands, then click on ABC Boats) (bodies, motors, bearings, gears, etc)
Thunderer: You can't go wrong with an ABC. These cars are built to last, fast, and runs like a 1/10 pancar. Smooth.