Sturgis Rally. The 4 Performance Hot Spots.

TMaxToday’s Harley® riders want the flexibility to make performance changes on a whim, like adding air cleaner kits, aftermarket pipes or performance engine kits.

From stock displacement to 131 CI engines, the ThunderMax® EFI System delivers immediate results for factory and aftermarket engine parts combinations. ThunderMax® users experience a dramatic increase in throttle response, improved drivability, stabilized engine temperatures, and eliminated exhaust popping on deceleration.

ThunderMax® AutoTune automatically tunes the Air/Fuel Ratio at every combustion cycle, regardless of changes in riding conditions, tuning the motorcycle’s engine in real time.  ThunderMax® represents the finest in aftermarket EFI technology offering riders top-of-the-line technology produced entirely in the U.S.A.

During the Sturgis rally, ThunderMax® Products will be Available from the Following Vendors. ThunderMAX®, located at Black Hills Harley-Davidson® in Rapid City. Cycle Solutions®, located in Sturgis at 8th and Lazelle St. Rinehart® Racing, located in Sturgis at 5th and Lazelle St. J&P Cycles®, located in Sturgis, SD – Lazelle St. Zippers ThunderMax. 410.579.2828.

Zipper's

1 Response to “Sturgis Rally. The 4 Performance Hot Spots.”


  1. 1 Blackmax Jul 31st, 2013 at 6:07 pm

    Excellent product

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