1. what is the difference between a 2.5 and a 2.5r (I think I have the 2.5r)
2. what is the best plug to use (it takes a while to start my rig)
3. would a motor saver filter make a significant improvement
I had bought this revo pretty cheap and finally got to drive it today, it was a little rough running in the beginning as it was not going very fast at first but after it warmed up and I tuned it in things seem to get a little better other than it is a hard starting machine. The shifting is not as easy to notice like it is with my t-maxx. for a 100 bucks and really not having to put any thing into it I can't complain.