yes they do have an engine dyno but the owner whos name is justin. Will not do dynos for the heack of it. Its 200 for 3 runs just for a baseline and air/fuel graph and 300 for tuning. He's very very good at what he does.
JPC installed most of my exhaust and my Procharger. I highly recommend them. The dyno is not an engine dyno though, it's a chasis dyno...at least, I'm pretty sure of that. They did a lot of pulls on the dyno for me, since they installed the parts...and I'm pretty sure I didn't get charged extra for it. But I've never gone there solely for dyno pulls.