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#309-460 ThunderMax® With AutoTune For 2002-2007 Touring Models Double click on above image to view full picture

ThunderMax® With AutoTune For 2002-2007 Touring Models



ThunderMax® is an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson® motorcycles. This highly advanced, stand-alone tuning system utilizes proprietary AutoTune technology specificly designed to interface with wide-band oxygen sensors to automaticly adjust a wide range throttle positions and RPM ranges to deliver unmatched performance and driveability like no other product in the industry. ThunderMax® is made in the USA and comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and oxygen sensors, load a map, and enjoy your new ride!

In compliance with ARB emissions laws, this product is not sold or shipped to California.

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How You Ride, Where You Ride, Every Ride!
Would you like to have full control of your EFI system, freedom to make major or minor engine changes or tuning adjustments without a master’s degree in electronics and computers? Here is a simple solution—ThunderMax® with Wave Tune AutoTune! The ThunderMax® is a completely new product that replaces the factory electronic control module (ECM), not an add-on box or post-fuel signal modifier. The ThunderMax® is purpose-built to deliver uncompromising performance with advantages not possible with post-fuel or flash systems - but you don’t have to be a rocket scientist to install, program or make adjustments to it.

Just how easy is it? Installation is a straightforward plug-in replacement of the factory module and oxygen sensors*1. The ThunderMax® TMax Tuner software contains hundreds of base maps that cover most popular factory and aftermarket combinations, dyno-developed on real motorcycles. Choosing a map is a quick and easy process thanks to TMax Tuner’s sorting filters; loading a map takes less than a minute. After that, you’re ready to let the ThunderMax’s Wide-Band AutoTune system dial in idle and warm-up settings for your engine and you’re ready to ride!

During your ride, every time you ride, ThunderMax’s® Wave Tune AutoTune analyzes, adjusts and anticipates the air/fuel ratio read by the wide-band oxygen sensors at warp speed during every cylinder fire and makes any necessary adjustments to the injector pulse width to achieve the desired air/fuel ratio while compensating for variations in injectors, fuel pressure and exhaust flow. With every tank of fuel, at every temperature or elevation. That’s it! All you have to do is ride.

As simple as it is 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 Tuner software, you can adjust or monitor virtually every parameter of the system:

    • Idle Speed & Rev Limit
    • Closed Loop AFR Targets
    • Igniting Timing
    • Accel Pump Simulation
    • Start Fuel Pulse
    • Decel Pop Control
    • Speedometer Calibration
    • Read Diagnostic Codes
    • Running Statistics / Logs
    • Engine Temp Alarm
    • Live Engine Tuning
    • Live Monitoring & Recording
    • Dealer Digital Tech Compatible
    • Warm-up Settings
    • And More!

While this system does not require a dyno to achieve a smoother, cooler, excellent running engine, that does not mean it’s not a dyno-friendly device! Experienced tuners will appreciate its live-tuning capabilities with real-time monitoring and the ability to control all of the systems tuning parameters, knowing that AutoTune will keep the final tune from deteriorating as ambient conditions change. Advanced level software is available for technicians wishing to create a custom tune, add nitrous or install a forced-induction intake.

ThunderMax® also employs industry-leading tech support though its internal data-collection system that quickly communicates directly with the ThunderMax® support team should there ever be a need. ThunderMax® Technicians can quickly review recorded data streams, data stored within the module and information about the bike and system with just a few clicks of a mouse!

The ThunderMax® makes more 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 accessible 24/7 with an Internet connection so you’re only a mouse-click away from the latest available data. Each ThunderMax® includes an ECM, 2 wide-band oxygen sensors with harness, communication cable, software disk and comprehensive instructions. The ThunderMax® is designed and manufactured right here in the USA and backed by a 3-year warranty!

*1 ThunderMax® uses 18mm Wide-Band oxygen sensors, which unlike the factory narrow-band sensors read over the engines full rpm range for constant full-time feedback and adjustments. Certain year bike exhaust systems are equipped with 18mm sensor ports, others may have 12mm ports or none at all. Check application notes for compatibility.

Download the ThunderMax® software for free! CLICK HERE!

SPECIAL NOTE FOR 2002-2006 TOURING MODELS - ThunderMax® includes wide-band, 5-wire oxygen sensors that thread into 18mm x 1.5mm bungs located near the exhaust port, same thread size and location as stock narrow-band, 2-wire sensors used on 2007 Touring model exhausts (previous year bikes were not equipped with oxygen sensors). For 2007 model bikes, ThunderMax® sensors will install without modification. If the exhaust system on your 2002-2006 model Touring motorcycle is not equipped with oxygen sensor bungs in the 2007 location (near the cylinder head exhaust port), 18 x 1.5mm bungs will need to be added to the existing headers, or purchase an exhaust header with bungs installed. Weld-in bungs are listed above. See the video link for tips on installing exhaust bungs.

SPECIAL NOTE FOR 2006 TOURING MODELS - In mid-year 2006, H-D changed the configuration of the stock 3.91 injector spray pattern for 88" engines, from 8 to 25 degrees. ThunderMax® Maps are available for both 8 and 25 degree injectors used in 2006 bikes. To determine which injectors your 2006 bike is equipped with, search H-D Service Bulletin M-1185 on the Internet for identification instructions.


This product is not for sale or use on pollution controlled vehicles.

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Customer Reviews

Items 11 to 12 of 12 total

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Must have if you plan on any mods to your bike Review by Louis
I have a 2003 Road Glide with a high compression 95” motor and performance exhaust. It was running an aftermarket add on box to help performance but no matter how it was adjusted the bike just did not perform well.
I replaced the whole set up with a Thundermax after Zippers did the base programing.
The bike has never run better. I smile every time I start it up.
Road it to Sturgis last summer then across the Midwest down south and through the Smokey Mountains. Even hit Tail of the Dragon. 5000 miles in 10 days.
No matter the weather, elevation, heat, etc…… The bike ran great!!!!!
No adjustments needed no reprograming anything
This thing works right out of the box!!!!!!!
If you are modifying your bike add a THundermax to the list, get zippers to do the base programing and you will never need to touch it again.
Of course you can if you like to play but I like to ride.

(Posted on 6/8/2015)
Finally - the Cure! Review by Sean
Since new, I had a rough starting Bike. It would pop and backfire every time when I started it. It got so bad that we installed a different tuning system, which didn't even correct the problem. I tore that out with less then 100 miles on it... Yes, I had to pay for it.

I dealt with the engine issues till I found the ThunderMax. I ordered one from Zipper’s and it was delivered already programmed a day earlier than expected. I installed the O2 sensors and bolted in the ThunderMax.... pressing the start button for the first time, I knew my issues were resolved!! No hard start, no sputter, no backfire when cold. My first ride on the bike was better than when the bike was brand new. I rode 50 miles on my first ride with the ThunderMax and I didn't want to get off the bike. The engine runs great, and it seems to just get better with time. I expected a hard start hot when I finally shut the engine off but when I pressed the button, the engine started right up. No compression released needed, no slow crank - just fired right up! This is the solution for anyone with the 103” engine without compression releases that is experiencing hard starts or any drivability issues. The instructions for install were spot on, and the software is easy to understand and operate. I can’t wait to get more seat time. Why I didn't do this when I first got the bike beats me.

The ThunderMax makes riding fun again!!.. Don't think twice, get one, it will be the best money you ever spent!!!!
(Posted on 6/8/2015)

Items 11 to 12 of 12 total

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Additional Information

Brand ThunderMax®
Fuel / Air EFI
Model Touring®
Engine Type Twin Cam®
Emissions Compliant No