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ThunderMax ECM Integral Auto Tune Tuner System Fuel Management Harley Touring

Manufacturer: THUNDERMAX





 PART# 309-562


2014 - 2016 Touring Models - Air & Twin Cooled (Throttle-by-Wire)

2014 - 2016 Touring Trike Models - Air & Twin Cooled (Throttle-by-Wire)

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 with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax 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!


ThunderMax Benefits Include:

Easy to Install & Simple to Use

Increased Engine Performance & Motorcycle Rideability

Cooler, Smoother Running Engine

Adjustable Idle Speed & Rev Limit Control

No Dyno Required - Automatically Tunes for Riding Style & Riding Conditions

Never Outgrow It - Easily Accomodates Bike Changes (Pipes, Cams, and More)

100% Engineered & Made in the USA

3-Year Factory Limited Warranty


ThunderMax System Includes:

ThunderMax Performance Engine Control Module (ECM)

Two (2) Wide-Band Bosch 5-Wire Oxygen Sensors (18mm) with AutoTune Connection Harness*

USB Communication Cable

TMax Tuner Software Disc

ThunderMax Quick Start Easy Install and Printable Comprehensive User’s Manual


Each basemap has all of the items below optimized for you. The user-friendly ThunderMax software allows access to these adjustable features and gives you the ability to control nearly every parameter of the system for simple adjustments or for custom tuning.


Adjustable Rev Limit, Idle Speed, and Speedometer Calibration

Adjustable Closed-Loop AFR Targets for Power and Fuel Mileage

Adjustable Ignition Timing (Spark) Maps - Globally or by Specific Throttle Position with Engine Temperature Input

Adjustable Engine Temperature Alert Alarm

Adjustable Injector Size Compensation

Adjustable Start Maps (Start Fuel Pulse) and Warm-up Settings

Adjustable Accel Pump Simulation

Adjustable Decel Pop Control

New Rider Programming Mode Feature - Store up to 5 basemaps and access them PLUS the ability to change idle speed, speedometer calibration and clear AutoTuned adjustments ALL without linking to a computer. Select models only.

H-D Digital Tech Compatible

Read & Clear Diagnostic Codes through Odometer Window, Digital Tech or Through the ThunderMax Software.

Records Running Statistics Every 100 RPM / Engine Temperature Logs

Live, Real-Time Engine Tuning

Live, Real-Time Monitoring

Live, Real-Time Recording

Map Analyzer feature assesses AutoTuned map adjustments in a snapshot to simplify map analysis

AutoMap Creator feature speeds AutoTune mapping and improves the tune of any engine and exhaust pipe combination using the learned autotune adjustments.


For 2014 - 2016 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 2008 and 2009 Touring model exhausts. Starting with 2010 models, all Touring bikes are equipped with a catalytic converter in the headpipe collector area. The oxygen sensors used by H-D on 2010 and later Touring models are smaller (12mm threads) heated 4-wire, narrow-band sensors located just forward of the catalytic converter near the transmission. The ThunderMax sensors must be mounted in the 2008-2009 location, up near the cylinder head exhaust port. If you are retaining the original equipment 2010 and later exhaust header or have already purchased a pipe configured for 2010-up style 12mm sensors, 18 x 1.5mm bungs will need to be added to the existing headers in the upper location (near the exhaust port as on 2008 and 2009 models), with the lower 12mm sensors removed and ports capped. If using a not-yet-purchased aftermarket exhaust pipe, order an exhaust system for a 2009 model (pipe fitment is the same for 2010-2014 models) and your ThunderMax sensors will install without modification. If you already have an aftermarket exhaust designed for a 2010 and later model Touring bike, you will need to install bungs as mentioned previously if the system is not equipped with dual bung locations.


This product is intended for "RACE READY" vehicles only and is not for sale or use on vehicles otherwise subject to emission control requirements.  In the state of California, this product should not be used on any vehicle that is registered for use on public roads. Please view the ThunderMax 50 application guide for "STREET APPROVED" & ARB compliant products.

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