TechCo Twin Screw I can tell you that the Techco unit has what it takes! I just got mine back from a local shop - FASTLANE - who did the installation for me. Man what a ride! Still need to get some more power :grin: Right now we have plenty, although with the upgrades to the bottom end we should be able to get another pully to drive more psi!!! This was one of the first units installed here in Texas. Had some minor things to deal with - nothing major. The kit had everythign you need to get the job done and the power to the wheels. Keeping them hooked up is another matter. Here are a few pics of the installation process. I will be posting more as things start to get better, and better, and better. Go for the Techo and get more boost - you will be happy!