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ThunderMax 50 ECM with Auto Tune Closed Loop System

J&P Cycles Part Number: 402-459

Manufacturer Part Number: 309-375

$899.99

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Important Fitment Note

Only fits 2008-10 Big Twin with 96" engines (except Throttle-By-Wire Models and FXDF).

Description

Description for ThunderMax 50 ECM with Auto Tune Closed Loop System

• Have full control of your EFI system, freedom to make major and minor adjustments without a master’s degree in electronics and computers

• CARB-approved, 50 State street legal including California, Closed Loop System - ARB Executive order # D-644

• ThunderMax is a completely new product that replaces the factory module, not an add-on box or signal modifier

• Purpose-built to deliver uncompromising performance but you don‘t have to be a rocket scientist to install it, program it or make adjustments

• As simple as we’ve made it to install and use, don‘t be fooled into thinking that this not one of the most sophisticated systems you can buy for your Harley

• Using the supplied SmartLink software and communication cable, you can adjust or monitor virtually every parameter of the system

• The ThunderMax makes sense in the long run as the system can grow and change as your engine does - just load a new map

• ThunderMax software, firmware and maps updates are free and accessible 24/7 with an Internet connection so you‘re only a mouse-click away from the latest available data and product support

• Backed by a 3-year manufacturer's warranty

Product Specs

Product Specs for ThunderMax 50 ECM with Auto Tune Closed Loop System

Manufacturer Part Number:
309-375
Open or Closed Loop:
Closed
Sold in Units:
Each
Warehouse Part Number:
1036575
With/Without 02 Sensor:
With
Fitment
Fitment Note:

Only fits 2008-10 Big Twin with 96" engines (except Throttle-By-Wire Models and FXDF).

Fitment Questions?

With over 750 years of experience combined, our tech staff has the answers!

Compatible Models

Harley-Davidson® Models

  • Dyna Low Rider FXDL : 2008–2010
  • Dyna Street Bob FXDB : 2008–2010
  • Dyna Super Glide Custom FXDC : 2008–2010
  • Dyna Super Glide FXD : 2008–2010
  • Dyna Wide Glide FXDWG : 2008, 2010
  • Softail Cross Bones FLSTSB : 2008–2010
  • Softail Custom FXSTC : 2008–2010
  • Softail Deluxe FLSTN : 2008–2010
  • Softail Fat Boy FLSTF : 2008–2010
  • Softail Fat Boy Lo FLSTFB : 2010
  • Softail Heritage Classic FLSTC : 2008–2010
  • Softail Heritage FLST : 2008–2010
  • Softail Night Train FXSTB : 2008–2009
  • Softail Rocker C FXCWC : 2008–2010
  • Softail Rocker FXCW : 2008–2009
  • Softail Standard FXST : 2008–2010
Customer Reviews

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Instructions & Manuals
Important Product Notes

This item cannot be returned once the package is opened. Manufacturing defects must be addressed through the manufacturer directly. EPA Note: Requires exhaust system equipped for or modified for use with oxygen sensors Legal in California only for racing vehicles which may never be used upon a highway.

Shipping Note

Due to state regulations we cannot ship this item to the state of California for some motorcycles.

Warranty Information

3-Year

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