THUNDERMAX 21 UP TOURING HARLEY 309-591 - A Plus Performance Cycle

THUNDERMAX

THUNDERMAX 21 UP TOURING HARLEY 309-591

  • Sale
  • $1,115.95
  • 2 wide-band Bosch 5-wire oxygen sensors (18 mm) with AutoTune connection harness
  • ThunderMax quick start easy install and printable comprehensive user’s manual
  • Never outgrow it - easily accomodates bike change
  • No Dyno required - automatically tunes for riding style and riding conditions
  • ThunderMax performance engine control module (ECM)
  • 100% engineered and made in the USA
  • Easy to install and simple to use