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ThunderMax ECM with AutoTune Closed Loop System

Manufacturer Part Number 309-361

12 Reviews

This product fits a variety of motorcycles. Please select yours so we can find the right part and guarantee fitment. Select A Motorcycle

  • ThunderMax ECM with AutoTune Closed Loop System
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$899.99

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12 Reviews

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J&P Part: 711-955

Description for ThunderMax ECM with AutoTune Closed Loop System 

ThunderMax ECM with AutoTune Closed Loop System

ThunderMax ECM with Auto-Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harness

•Utilizes wide-band sensors and works as a closed-loop control system to continuously self-adjust and properly tune the motorcycle’s air/fuel ratio for all riding conditions

•Easy installation: replace the factory ECM, install new sensors and harness, load the correct map for your bike, and ride

•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

•Hundreds of maps available to download for your bike (based on model, engine size, exhaust system air cleaner, pistons, cams, etc.) load the map of your choice and the integral auto-tune will do the rest

•Improves throttle response, exhaust sound and driveability

•Does not require dyno tuning

•Rider can adjust idle speed, rev limit and speedometer calibration

•Adjustable front and rear cylinder AFR maps, ignition timing (spark) maps, and startup maps

•Works with all popular exhaust systems and is compatible with high-performance camshafts

Supports turbo, nitrous and supercharger applications

•Software program allows live monitoring, recording and examination of diagnostic codes and datalogs including number of starts, engine temperature and rpm operation

•New maps, software, firmware updates, map analysis and tech support available online at no charge

•Will require the use of an exhaust system with 18mm sensor bungs or head pipes must be modified to accept 18mm sensors

Made In The USA This product was proudly made in the USA

Product Specs

Manufacturer Part Number: 309-361

Open or Closed Loop: Closed

Sold in Units: Kit

With/Without 02 Sensor: With

Fitment for ThunderMax ECM with AutoTune Closed Loop System 

This product fits a variety of motorcycles. Please select yours so we can find the right part and guarantee fitment. Select A Motorcycle

Click (+) to view all compatible models

Harley-Davidson® Models

Softail Blackline FXS : 2011
Softail Cross Bones FLSTSB : 2011
Softail Deluxe FLSTN : 2011
Softail Fat Boy FLSTF : 2011
Softail Fat Boy Lo FLSTFB : 2011
Softail Heritage Classic FLSTC : 2011
Softail Rocker C FXCWC : 2011
Softail Standard FXST : 2011

Customer Reviews for ThunderMax ECM with AutoTune Closed Loop System 

Overall Rating:
5/5 based on 12 ratings

5 by

easy install

5 by

Best bang for the buck. I have tuned my bike for its best performance and can fine tune it any way and any time I want to. Newest software update allows me to use multiple tuning maps without having to use the laptop. If I am traveling heavy with 2 up and luggage I can call up the map just for this riding environment on the fly and the bike runs great. When riding solo and doing high performance riding I call up the tuning map for this riding style and the bike performs great again all without the laptop. Great product and WELL Worth the money.

5 by

Works great easy install

5 by

I have never had anything but stock electronic control units on my touring bikes. Friends recommended ThunderMax enthusiastically so I went to JP Cycles and bundled a large purchase with pipes, air cleaner, etc. Unit works perfectly. Better throttle response, more hp and torque, cooler engine temp. Wish I had upgraded sooner.

5 by

In the last few weeks I spent way to much money on my '09 RoadKing. Here is how it played out. I ordered a set of Cobra Speedster Duals with PowerPort, Arlen Ness Plain Finish Stage I Big Sucker Kit, Vance & Hines FuelPak. Parts came in and did the install. Called Vance and Hines to verify which map to use. Had decel popping, occasional backfiring, poor throttle response, and lst a major portion of my top end. Put a little over 250 miles on it to see if it would level out. I ordered a Throttlepak to try and eliminate the newly acquired poor throttle response. Which I never installed, The next day I ordered new tires, a Thundermax, from J&P, and ordered a Road Zeppelin Seat from Harley. The seat and ThunderMax came in on Wednesday and the tires on Thursday. I went and had the tires mounted and balanced. When I got home and let the bike cool down I installed the Thundermax and seat. I finished up about 8 last night and decided it was time to go see how all was working. The tires were a mist at the time. The seat made my wife's and my butts very happy. The ting that blew my mind was how the bike was running. It has never run that smooth. at 60 it sounded like a nice smooth idle almost like it wasn't even working. I found a couple of good grades to run up and there was all my top end back just smoother. All I can say is that I am sold. In the future one of these will be going on my '13 Wide Glide also. Good Bye stock Delfi. Hello Thundermax. I guess I have a bunch of stuff fixing to hit ebay to try and recoup some of the funds spent.

5 by

If you are going to use this on a 2012 or later harley touring, get the 2011 header pipes to O2 sensor bungs on the 2011 work the 2012 do not pipes are the same otherwise.

5 by

best improvement for the money you can do

4 by

Amazing once fully calibrated with bike.

5 by

no maps for 2012 no updated maps period and up nothing for 96 to107 with 2.0 1.6 intake and exhaust stage three heads 630 cams 58mm throtlebody 4.89 inj vhines two inone propipe

5 by

Still the best computer on the market... Selling old HD computers as kickstand pads...

4 by

Easy to install and it seems to work very well after the first ride power was smooth and instant. like all computers I need to learn how to use more of the tools available.

5 by

Takes some time to set up. After riding and auto tuning map it runs great. No popping out of pipes .

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Important Product Notes

Not legal for sale or operation in the state of California.├┐Check 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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