My Store
Open Today At 10am
3635 West Broad Street
Columbus, Ohio 43228
614-869-3115
Services
Experienced staff support available on site
Store Events
Meet the local riding community for Bike Nights & more
Shop the Store
Find out what’s in stock and ready to go
Search Suggestions
Menu

We're sorry but all combinations for this product are currently out of stock.

You can be notified upon their arrival by choosing the options you are interested in and then entering your email in the box below.

Product Details

ThunderMax 50 ECM With Auto Tune Closed Loop System For Harley

Features

  • 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 Style J&P Cycles Item # Catalog Number Store Sku MFR. Product # Availability
Product Style ThunderMax 50 ECM With Auto Tune Closed Loop System For Harley 2007-2011 J&P Cycles Item #10223959 Catalog Number402-459 Store Sku MFR. Product #309-375 AvailabilityOut of Stock
Fitment Notes & Exceptions
  • Only fits 2008-10 Big Twin with 96" engines (except Throttle-By-Wire Models and FXDF).
This Product Fits
Product Description
Part Numbers
Fitment
0 Customer Reviews for All Models
0 Questions & 0 Answers for All Models
Join now & get rewarded!

Get Free 2-Day Shipping and $15 + 5% RPM Cash on this order.

Already enrolled in RPM? Link your existing membership here.

Related Videos

Thundermax How AutoTune Works • JPCYCLES.COM

Thundermax ECM Set Up and Base Mapping : Pro Tip

The Indian Larry Twisted Frame Chopper | J&P Custom Motorcycle Builds

150-Horsepower Harley-Davidson | J&P: Custom Motorcycle Builds

124 Cubic Inch Twin Cam FXR | J&P: Custom Motorcycle Builds

The First 8 Things You Should Change When Buying a Harley Davidson

Reviews & Questions

$39.99/yr.
Spend Less. Ride More.
  • 5% RPM Cash Back*
  • 10% Off Over 70 Brands
  • $15 in RPM Cash When You Join
  • Free 2-Day Shipping & Free Returns*
  • And more!
Become a member today! Learn More