I run those on 15x8's, and they work perfect.
Slicks are better for all out traction, but 15" DR's have there place. I use BFG 275/50 R15 DR's because I switch over to them at home, and then drive to the track. I could not do that with slicks since they cannot be driven on the street. DOT racing tires like MT Streets are some where between a slick and DR's. What you get really depends on how serious your are.