My first truggy was the rtr losi and I have to say it's a great deal. The mach 427 is easy to tune,runs great and I think after like three months I changed the glow plug just because I felt guilty. I switched the 650 to the throttle and bought a new steering servo,no pop steering ends, spectrum receiver is a bonus also. You will want to remove the diffs,wipe out the caulk and fill with silicone