the RB exhaust is still for sale but im trying to sell it localy dont want to ship. I decided to go with a front mount with a nitrous sprayed intercooler, my last water to air was a pain in the ass, but it was cool for the track, maybe ill use it on the track dont know yet. im hoping its going to run about 450-500hp and running high to mid 11's, but building this thing is taking longer then I thought.