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ThunderMax ECM With AutoTune Closed Loop System
ThunderMax ECM With AutoTune Closed Loop System
ThunderMax ECM With AutoTune Closed Loop System
ThunderMax ECM With AutoTune Closed Loop System
Made in U.S.A.
38 Reviews

ThunderMax ECM With AutoTune Closed Loop System

$989.99

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J&P Part #:  126-888
Mfr Part #:  309-562

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ThunderMax ECM With AutoTune Closed Loop System
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ThunderMax ECM With AutoTune Closed Loop System

ThunderMax ECM With AutoTune Closed Loop System

$989.99
Order in the next to ship today

Product Details

Description

Description for ThunderMax ECM With AutoTune Closed Loop System

The ThunderMax ECM With AutoTune Closed Loop System is the high-tech way to manage motorcycle performance. It mounts conveniently in place of your factory ECM and plugs into your existing harness, and uses a closed-loop control system to continuously self-adjust and properly tune the motorcycle's air/fuel ratio for all riding conditions. The ThunderMax has hundreds of maps available to download for your bike. Choose based on model, engine size, exhaust system air cleaner, pistons, cams, and more. Then, load the map of your choice and the integral auto-tune will do the rest. You can adjust the idle speed, rev limit and speedometer calibration, front and rear cylinder AFR maps, ignition timing (spark) maps, and startup maps, all without dyno tuning. It works with all popular exhaust systems, is compatible with high-performance camshafts, and supports turbo, nitrous and supercharger applications. The software allows live monitoring, recording and examination of diagnostic codes and datalogs including number of starts, engine temperature and RPM operation. Easy installation and tech support, free software and updates included. Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and comprehensive user's manual, technical support and free software and updates. Will require the use of an exhaust system with 18mm sensor bungs or head pipes must be modified to accept 18mm sensors.

• Mount in place of factory ECM

• Self-adjusting

• Hundreds of maps

• Auto-tune

• Compatible with most exhaust systems

• Use with high-performance camshafts, turbo, nitro and superchargers

• Monitor, record and analyze diagnostic codes and stats

• Free firmware, tech support and updates

• System designed to work with 18mm O2 sensors

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ThunderMax ECM With AutoTune Closed Loop System
Specifications

Product Specs for ThunderMax ECM With AutoTune Closed Loop System

Manufacturer Part Number:
309-562
Open or Closed Loop:
Closed
Sold in Units:
Each
Warehouse Part Number:
1006562
With/Without 02 Sensor:
With
Fitment
Fitment Note:

Requires use of exhaust with 18mm sensor bungs or headpipes need to be modified to accept 18mm sensors.

Fitment Questions?

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

  • Harley-Davidson®

    • Touring Electra Glide Police FLHTP : 2014–2016
    • Touring Electra Glide Ultra Classic FLHTCU : 2014–2016
    • Touring Electra Glide Ultra Classic Low FLHTCUL : 2015–2016
    • Touring Road Glide FLTRX : 2015–2016
    • Touring Road Glide Special FLTRXS : 2015–2016
    • Touring Road Glide Ultra CVO FLTRUSE : 2015–2016
    • Touring Road Glide Ultra FLTRU : 2016
    • Touring Road King Classic FLHRC : 2014–2015
    • Touring Road King CVO FLHRSE6 : 2014
    • Touring Road King FLHR : 2014–2016
    • Touring Road King Police FLHP : 2014–2016
    • Touring Street Glide CVO FLHXSE : 2015–2016
    • Touring Street Glide FLHX : 2014–2016
    • Touring Street Glide Special FLHXS : 2014–2016
    • Touring Ultra Limited CVO FLHTKSE : 2014–2016
    • Touring Ultra Limited FLHTK : 2014–2016
    • Touring Ultra Limited Low FLHTKL : 2015–2016
    • Trike Freewheeler FLRT : 2015–2016
    • Trike Tri Glide Ultra Classic FLHTCUTG : 2014–2016
Product Notes

Important Product Notes

Not legal for sale or operation in the state of California.ÿCheck with the U.S. EPA and your respective state and local regulations to confirm emission compliance. This item cannot be returned once the package is opened. Manufacturing defects must be addressed through the manufacturer directly.

Shipping Note

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

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Ratings & Reviews

Help Customers Understand This Product

4.9
38 Reviews
Rating Breakdown
5 stars
34
4 stars
4
3 stars
0
2 stars
0
1 star
0
February 2, 2021
Love ThunderMax autotuners!! I've used them in the past with great results. Yes the up front expense is a bit steep, but it gives you the freedom to change what ever you want on your bike without the hassle of bringing into a shop to get dynotuned every time you change your muffler or head pipe or cams or whatever. I will always run these on my EFI bikes.
-JOHN
January 26, 2021
Excellent service. Willing to price match. Saved money buying from JP cycles
-ERIC
December 1, 2020
The Thundermax ECM with autotune is the perfect fit for my 2019 HD SGS build. The ECM is easy to install, the software is intuitive. My build included a RS468 cam, S&S oil pump, cam plate, tappet cuffs and quickie pushrods and Fueling tappets. I also installed a TAB performance header and B.A.M. Sticks with 2.5 inch baffles. My M8 114 cu. in engine really wakes up between 2,000 and 5,000 rpms.
-BILL
September 3, 2020
I can't tell you how much JP cycles worked with me on getting the ThunderMax ECI unit installed they helped me and walk me through the programming of the unit their technical support staff goes above and beyond they even called me back to make sure everything was okay. There's only two guys in their tech support team and I worked with one gentleman his name alludes me but I have to say that they are phenomenal with their follow up and their knowledge base. if I was to ever buy a product aftermarket product I would go with JP cycles they know their s***.
-STEVEN
June 1, 2020
Works like a ECM on my 2012 Road Glide should. I like the way you can hook my laptop to it and go in and program it and see the readings for fuel management and all the other things you want to look at. Works well with the S&S 2 into 1 exhaust with the 18 mm oxygen sensors. Wish I would have put this in my bike a long time ago.
-BRADFORD
May 16, 2020
I love my new thundermax auto tuner we're having problems dynoing my bike before but the thundermax auto-tune on downloaded their Maps started to bike at tood itself and runs so much better A lot better throttle response a lot more horsepower a lot better idle and motor runs a lot cooler
-NATHAN
December 20, 2019
Quality and install is great still trying to find a tune that matches my set up
-BILLY
October 14, 2019
I was having misfiring issues and loss of power at low RPM with my bike for years. I took it to Harley and they said it was fine, then I took it to another shop who knew it wasn't right but couldn't find the problem. I read that there are issues with some stock ECM's. The ThunderMax was the best investment to replace my stock ECM and customize my tune. It runs like a new bike!
-CAMERON
September 5, 2019
easy to install and load base map haven’t got bike in a day I yet but tuning software is easy to use but could be set up a little better
-JACOB
July 22, 2019
Easy to install and easy to get started with
-Swifty67

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ThunderMax ECM With AutoTune Closed Loop System
ThunderMax ECM With AutoTune Closed Loop System
ThunderMax ECM With AutoTune Closed Loop System
ThunderMax ECM With AutoTune Closed Loop System
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