GT Performance has been a leader in the high performance marine industry for over 20 years. Located in Upland CA, GT Performance provides a wide variety of marine services. From your basic service to full restoration and upgrades.We are also an authorized Mercury parts  and service center.

GT Performance recently built two 1650HP engines for Greg Olson's 33 Daytona. It was no surprise when Greg became King of the Desert at Lake Havasu's Desert Storm       Shootout. Congratulations! Greg & Michelle we are looking forward to 2010 Desert Storm Shootout.