I appreciate all the feedback about the headbolt thing I posted earlier but I want to know from you terminator guys when do we lose street ability with these cars? I say that in regards to running over 500-600+hp and spending every other month at the tire store. I had a set of Nitto 550 Extremes and got maybe 5 months out of them. A buddy recomended buying another set of rims and some slicks for "playing" and just have just a regular set for daily driving. Prior to the Whipple get installed I was putting down 443 at the wheels and 460lbs tq (Mustang dyno numbers) I figured post blower install with the accompanying mods is going to net me another 50-75+ at the wheels. For you guys running high hp numbers have you done to help keep these cars on the street?