I have had my stock HPI Micro RS4 for about 2 years. Just playing around with it, I wanted to get some more performance out of it. What kind of hop-ups would you guys suggest for me, not only performance but also a little bling bling aswell. I cant decide, so what will be good for me if I wanted to race it occasionally? I have about 350.00 to spend, so there are some good possibilities.