What is the one everyone uses? I see a the normal one, an upgrade one and a hd2. And how much should it cost?

 

HD2 is what you want.

 

We use the hd-2 kit. We do sell it for $95 if you are in need of one. It would be a good idea to update you accumulator pistons while you have your valve body down. We offer the package of three pistons for $20. Give us a call if there is something we can do for you.