I bought a Hot Bodies .18 for my Rustler when the original Pro.15 wore out...It's been a very reliable engine for me (I just bash)...It seems to have the same top end as the Traxxas, but the low end torque is much better. The carb was only a single needle, but I fitted the Traxxas dual needle to it with very little effort. It really made it come to life. If you're just bashing around, the Hot Bodies engine is not a bad deal for the price, considering how much a piston/sleeve and crank bearings would run if you rebuilt another engine. Mine is still going strong after about 4 gallons of fuel. You didn't say what car you were putting it in. You might have to cut the crankshaft. I did.
