Home - Return to Previous Page
Zippers
Click on image to zoom

Zippers ThunderMax 50 - 309-370

309-370

Description

California ARB-legal complete replacement engine management system for Delphi-equipped EFI model Harleys
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 inwithout 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 USA

Application List

YearsMakeModelApplicationNotes
2001 - 2005Harley DavidsonFLSTCI Heritage Softail Classic
2001 - 2005Harley DavidsonFLSTF Fat Boy
2001 - 2005Harley DavidsonFLSTFI Fat Boy
2005 - 2005Harley DavidsonFLSTN Softail Deluxe
2005 - 2005Harley DavidsonFLSTNI Softail Deluxe
2001 - 2003Harley DavidsonFLSTS Heritage Springer
2005 - 2005Harley DavidsonFLSTSC Softail Springer Classic
2005 - 2005Harley DavidsonFLSTSCI Softail Springer Classic
2001 - 2003Harley DavidsonFLSTSI Heritage Springer
2001 - 2005Harley DavidsonFXST Softail Standard
2001 - 2005Harley DavidsonFXSTB Night Train
2001 - 2005Harley DavidsonFXSTBI Night Train
2001 - 2005Harley DavidsonFXSTD Softail Deuce
2001 - 2005Harley DavidsonFXSTDI Softail Deuce
2001 - 2005Harley DavidsonFXSTI Softail Standard
2001 - 2005Harley DavidsonFXSTS Springer Softail
2001 - 2005Harley DavidsonFXSTSI Springer Softail

Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W6.0000” x H10.0000” x L4.0000”
  • Free Ground Shipping (1 - 5 Days)