Breaking new ground at BiLT1 Push Button Turbos, we have designed and engineered the best way to run that big T-4 which is capable of adding 600hp to your stock engine. Keeping your engine wear and mileage in mind, we've created a system that will produce approximately 250 hp at 10 pounds of boost – equaling about 512 hp at the flywheel and 390 hp to the rear wheels (Tested on our 4.8 Vortec V8).   What are the benefits? - You'll be one of the first to have it. - You'll have complete control of gas mileage and the amount of wear on your engine vs. what a full-time large high boost turbo application would experience. Now, just push the turbo boost button to pass, to pull, and our favorite… when you hit dirt or sand. How does it work? We've designed most of this horsepower to be on the button. When you push the turbo button "off", it will relieve 80% of the pressure leaving only 20% - which adds 50 horsepower for normal day-to-day driving. Push the turbo button "on" and you will get 250 hp for "not so normal" driving and gas mileage. (We DO NOT recommend going over 12 pounds of boost.)