100 Horsepower Club

Southern Thunder Harley-Davidson 100 Horsepower Club

Southern Thunder Harley-Davidson is proud to recognize our customers who enjoy the rush of horsepower and extra power.

Do you have what it takes to be in the CLUB?

Think your Harley has what it takes to be a part of our elite 100 horsepower club? Let us put it to the test in our state-of-the-art DynoJet 250i testing and tuning facility. Our certified Dynojet technicians have the tools and training to tune your bike for power, performance, and reliability.

If your bike unleashes over 100 horsepower, you will receive a certificate, your photo will be proudly displayed, and you'll be endowed with serious bragging rights!


  1. Customers must have engine and performance work as well as a full dynometer from Southern Thunder Harley-Davidson.
  2. Stock Harley-Davidson® motorcycles are not qualified.
  3. Harley-Davidson® model and year is not a determining factor.
  4. In the case of used motorcycles, the qualifying perfomance work must be completed under current ownership for that person to join.
  5. A qualifying Harley-Davidson® motorcycle must reach 100 horsepower on the H-D® dynometer.
  6. The Southern Thunder Harley-Davidson® service department reserves the rights to make the final decision in case of any disputes.
  7. Other rules and exclusions may apply. See a H-D® service department employee for details.


    Our performance & chrome consultants can develop any package with the basic groundwork starting with a stage I. However, for those who crave power, we can take it to the extreme with a full race set up consisting of performance cams, modified cylinders and performance head work. Our dyno techs can improve horsepower and torque to maximize drivability throughout the entire RPM range.

    Call or stop in to see us today to schedule an appointment for your base dyno test. After that, we can consult with our trained and certified experts to build your customized performance enhancement package that best suits your riding style and meets your riding goals.


    Photos and details coming soon.