ThunderMax 50 ECM with Integral Auto Tune System for '08-10 EFI Softail Models <font color=red>for California Models</font>

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ThunderMax 50 ECM with Integral Auto Tune System
for '08-10 EFI Softail Models
for California Models
[309-375]

$809.95


Retail Price: $899.95
Your Price: $809.95
You Save: $90.00

2008-2010 EFI Softail® Models

"Street Approved" / California ARB E.O. K-001, K-001-1, and K-001-2

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!

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

100% Engineered & Made in the USA

3-Year Factory Limited Warranty

ThunderMax System Includes:

ThunderMax 50 Performance Engine Control Module (ECM)

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

Communication Cable

TMax50 Software Disc

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


For 2008-2010 Softail® 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 sensors.

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