Full Throttle Marine is an authorized Mercury Marine® service and performance center located near Lake Travis in Spicewood, Texas, USA. Family owned and operated, we are a top notch personal watercraft, outboard, and inboard/outboard repair center priding ourselves in providing the highest quality service possible.

We specialize in high performance I/O work and offer upgrade packages to fit every need from the popular 5.7L GM small block to a custom built 1000+ HP monster. No need to trade up in boats just to get the extra power you wish you had ordered from the factory. We offer performance packages for the basic 5.7 that can boost power to well over 350 HP at a very reasonable cost.

Whether your particular interests are fun & recreation, water sports, offshore powerboats, friendly poker runs or professional boat racing, we have the performance marine upgrades and custom engine packages to satisfy your needs. Custom upgrades for popular marine engines such as Mercruiser and Volvo, and replacement performance engines for family and offshore powerboats are only the tip of the iceberg at Full Throttle Marine. Each powerplant can be dyno tested to ensure maximum power output, matched to the most effective propeller for your application. Years of experience coupled with the dependability and safety make Full Throttle Marine the smart choice for your next marine engine upgrade, repower or repair.