RJ Race cars (Quarter max) is what I run. It is the cheapest I found and good quality. I have played with my 4 link for a long time and no matter what adjustments I made, the body roll was present. We put the anti roll bar on, and it made a WORLD of difference. Car leaves so much nicer with the anti roll bar. Once you get one on, you will be very pleased. A lot of people say if you're running a 4 link, you need to be running an anti-roll bar.