Evolutionary Improvements ….

  • Evolutionary E-Series Elliptical Diffuser Discs
  • Fully tuneable in minutes
  • Big horsepower & torque gains at a very reasonable sound level
  • Deep rich tone
  • Unique multi stage inner baffle
  • Absolute top quality, show chrome plating
  • Made in USA

E-Series offers the perfect balance of tuneability and performance!

E-Series Harley FLH slip on mufflers will be available in Sept 2014 followed by a range of Harley FLH, Dyna, and Softail 2/1 full systems in early 2015. We are also developing an assortment of Japanese systems as well as universal mufflers. Each system is engineered to be the most tunable on the market offering the best combination of horsepower, torque, and sound.