so i am going to order the redcat header and the team associated tuned pipe which ehroof recomended.
my question is: what radio, servos etc. should i upgrade to? don't want to spend over 100$ though...

http://www.clermontmotorsports.com/s...h-Z590M/Detail
you can get the pipe from him too: http://www.clermontmotorsports.com/s...ed-Pipe/Detail

what is the difference between an am and an fm? is one better than the other?

fm has less interference and has more range but to get an fm that is comprable to that jr system it will be over $100. I use that exact system in my avalanche and i am very happy with it.

actually i was going to buy from clearmont....much beter prices
clearmont, do you ship to FPO boxes?also do you have the VX-18 header in stock?
thx

He's a good and helpful guy too.

I have the stock header but I just sold out of the upgraded one. I do have more coming in though. I have plenty of the pipes.