Back to the main page Back to category Zipper

Bike details


Estimated price for orientation: 900 $

Category: Zipper


  • California ARB-legal complete replacement engine management system for Delphi®-equipped EFI model Harleys listed below
  • ThunderMax 50 automatically corrects air/fuel ratios through the use of wide-band oxygen sensors and the ThunderMax AutoTune module
  • This system allows continuous AFR tuning, keeping the engine at the specified air fuel ratio regardless of the changes in ambient conditions or terrain the vehicle is being operated in – without tuning on a dynamometer
  • Features increased torque and power over the stock system and maintains excellent fuel economy
  • System properly self-tunes aftermarket exhaust systems automatically
  • 2001-2006 models will require exhaust systems equipped with or modified for oxygen sensor bungs
  • Adjustable rev limiter
  • Provides access to read vehicle diagnostic trouble codes
  • Made in the U.S.A.
NOTE: Because of possible clearance issues, some aftermarket exhaust systems may require modifications or relocation of their O2 sensor port bungs. NOTE: C.A.R.B. EO #s D-644, K-001, K-001-1, K-001-2. NOTE: Some products may not be legal for sale or use on pollution controlled vehicles, check your local laws and the manufacturers' information.