Today we built Dylan’s s4 Turbo 13B. Check out the pics for a quick step by step build process. This motor will be put into a drift/track car, it will be a happy motor. To help make that power to spin the wheels,  it has been built with a mild street port, RA coolant seals, Mazda Apex seals, and Atkins solid corner seals. We have tested our own cars both on the street and in extreme track conditions and this combination has worked great for us.