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ThunderMax Thundermax ECM With Auto-Tune Closed Loop System - 309-362

  • Part #: 209076
  • Manufacturer Part #: 309-362

MSRP Price: $989.95

Our Price: $890.99

You Save:
$98.96 (10%)
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Overview of ThunderMax Thundermax ECM With Auto-Tune Closed Loop System - 309-362

  • Self-adjusting sytem combines the benefits of the ThunderMax ECM and the Auto-Tune Module for optimum performance
  • Mount the ThunderMax ECM with Auto-Tune module in place of the factory ECM -- it plugs into the existing harness
  • Auto-Tune adjusts itself for component and exhaust changes -- just install the new parts, download a map, and ride
  • System includes ThunderMax ECM and Auto-Tune Module, plug-in harness and two wide band sensors, SmartLink Software and communication cable, Quick-Start Easy Install and Basic Users Manual, technical support and free software and updates at www.thunder-max.com


  • Included Items:
    (1) Thunder Max ECM
    (1) ECM Cable
    (1) USB Cable
    (2) Cable Plug Covers
    (8) Wire Ties
    (2) O2 Sensors with Cables

    NOTE: 10-up models require the use of 09 header pipes with 18mm sensor bungs or modify 10-13 header pipes to accept 18mm sensors

The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.

Specs for ThunderMax Thundermax ECM With Auto-Tune Closed Loop System - 309-362

Type Fuel Injection Module
Units Each
Weight 2.80 lbs

Specs for ThunderMax Thundermax ECM With Auto-Tune Closed Loop System - 309-362

Type Fuel Injection Module
Units Each
Weight 2.80 lbs

Fitment for ThunderMax Thundermax ECM With Auto-Tune Closed Loop System - 309-362

See if this part fits your ride

Part 209076 fits the following machines

Harley-Davidson
  • 2013 Harley-Davidson Electra Glide Classic - FLHTC
  • 2012 Harley-Davidson Electra Glide Classic - FLHTC
  • 2011 Harley-Davidson Electra Glide Classic - FLHTC
  • 2010 Harley-Davidson Electra Glide Classic - FLHTC
  • 2009 Harley-Davidson Electra Glide Classic - FLHTC
  • 2008 Harley-Davidson Electra Glide Classic (EFI) - FLHTC
  • 2009 Harley-Davidson Electra Glide Standard - FLHT
  • 2008 Harley-Davidson Electra Glide Standard (EFI) - FLHT
  • 2013 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2012 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2011 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2010 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2009 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2008 Harley-Davidson Electra Glide Ultra Classic (EFI) - FLHTCU
  • 2013 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2012 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2011 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2010 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2009 Harley-Davidson Road Glide - FLTR
  • 2008 Harley-Davidson Road Glide (EFI) - FLTR
  • 2013 Harley-Davidson Road Glide Ultra - FLTRU
  • 2012 Harley-Davidson Road Glide Ultra - FLTRU
  • 2011 Harley-Davidson Road Glide Ultra - FLTRU
  • 2013 Harley-Davidson Road King - FLHR
  • 2012 Harley-Davidson Road King - FLHR
  • 2011 Harley-Davidson Road King - FLHR
  • 2010 Harley-Davidson Road King - FLHR
  • 2009 Harley-Davidson Road King - FLHR
  • 2008 Harley-Davidson Road King (EFI) - FLHR
  • 2013 Harley-Davidson Road King Classic - FLHRC
  • 2012 Harley-Davidson Road King Classic - FLHRC
  • 2011 Harley-Davidson Road King Classic - FLHRC
  • 2010 Harley-Davidson Road King Classic - FLHRC
  • 2009 Harley-Davidson Road King Classic - FLHRC
  • 2008 Harley-Davidson Road King Classic (EFI) - FLHRC
  • 2013 Harley-Davidson Street Glide - FLHX
  • 2012 Harley-Davidson Street Glide - FLHX
  • 2011 Harley-Davidson Street Glide - FLHX
  • 2010 Harley-Davidson Street Glide - FLHX
  • 2009 Harley-Davidson Street Glide - FLHX
  • 2008 Harley-Davidson Street Glide (EFI) - FLHX
  • 2011 Harley-Davidson Street Glide Trike - FLHXXX
  • 2010 Harley-Davidson Street Glide Trike - FLHXXX
  • 2013 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
  • 2012 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
  • 2011 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
  • 2010 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
  • 2009 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG

Thundermax ECM With Auto-Tune Closed Loop System - 309-362

4 out of 6 reviews
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Thunder-Max 309-362 DK 209076

Great product. Bike runs very good with increased power. Works as advertised. It's far superior to the other tuners out there. Instructions are good and can be downloaded from the Thunder-Max web site and looked over before purchasing. You get what you pay for, It's a bit pricey but the end result is a product that works and auto-tunes the engine so you don't have to guess at adjusting the map yourself.

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T MAX 309-362

Not what I expected, did not have a map close to what I have. Not getting the milage I was expecting, not even close to what the stock ECM was getting. It does provide a lot more power, can't use the extra power because it causes the clutch to slip. Only been using for a week, will let it go for a few weeks but if the milage don't get better I will contact the guys at T Max to be sure there is not something I missed causing the milage issue.

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from Montz, La

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Great tuner

This is the best tuner I have bought yet. Installation was a breeze. The pdf manual has lots of information on the functionality of the system. My bike runs great and I can change to new performance parts when I want without having to pay a dyno tech to reprogram the computer. I wish they built one for my Hot Rod truck! cons: The connectors are really big and hard to hide. The base maps are a bit to generic, however with the autotune feature the computer adapts quickly. I went with a K&N air intake kit and V&H Big Shots staggered exhaust, now my Dyna takes off like my crotch rocket!

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from Gulf Coast

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2009 Street Glide

I installed on 2009 Street Glide with vance & hines power dual with monster ovals. Very easy to install yourself with a little bit of mechanical knowledge. A bit pricey though.

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from Wichita, KS

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Not Perfect, But Better Than Stock

Great but my biggest complaint is that the maps are too general. I really think there should be more options, as my pipes (BUB Jug Huggers) were not listed in the map options. That's fine, but nothing similar to them was listed. I chose the True Dual exhaust option, but I still have popping. I've spent a lot of time adjusting the map and timing and still haven't pulled off a good map. I really think, for something this expensive, Zippers needs to dyno and map more exhaust options. Most air cleaners have the same affect, not so with exhausts. Also, advice on the most appropriate target AFR for XYZ type of riding would be welcomed. For example, I do a lot of commuting but also like to have fast acceleration power and don't care all that much about gas mileage -- I just don't want to run too rich. What AFR? There isn't any advice on the net and Zippers should provide this. I have the version with a serial cable. The cable connection to the Thundermax unit is very fragile. I really think a more robust cable connection is necessary as this cable will end up in toolboxes, not clean rooms. Finally, I don't know if they've updated the plug connections or not, but they are too big! Dynas have little wiggle room for 1-inch wide wire connection plugs. Otherwise, it's pretty easy to use the basics. It has more powerful features that Zippers doesn't make any effort to train you on. I think, for the price, I should be getting a medium-level difficulty training manual on making tweeking adjustments. The whole point of this is to avoid going to the dealer/dyno shop over and over... so help us! I'm glad I have it in as my bike runs better overall. The stock ECU left the bike running weird and too lean, even after a Dyno tune at an independent shop with the SERT. I also have a bad habit of being unable to decide on an exhaust... I'm sick of dyno tuning... it should not be necessary for Stage 1. Unit voided my warranty with a nice healthy lecture from my HD dealership.

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from Chicago, IL

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Thundermax w/Autotune

The Thundermax unit is an excellent bolt on to replace the stock ECM. Tuning does require some basic knowledge of being able to use a computer, (installing software, cable, configuration, etc), but once installed, it's basically a hands off unit..or your can 'tweak" to your desire. There is a known bug in the unit which affects some, (mine anyway) where the ECM will lose connection to the speedometer. The workaround is to cycle the ignition. Not an ideal solution, but zippers is aware of the problem, and is continuing to find a solution for the affected units.

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Instructions and Manuals for ThunderMax Thundermax ECM With Auto-Tune Closed Loop System - 309-362

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