ThunderMax 50
	ThunderMax EFI	ThunderMax VRod	Magnetti Marelli	AutoTune Module
	ThunderMax® 50 ECM with Auto-Tune ARB-Legal Closed Loop System The ThunderMax 50 is a self-tuning closed-loop engine management system for 2001-2006 88” Twin Cam® bikes originally equipped with Delphi® open-loop EFI. The ThunderMax 50 installs easily and optimizes your engines’ tune as you ride. Because the ThunderMax 50 is a closed-loop system, the ThunderMax 50 ECM uses feedback data from the wide-band oxygen sensors and AutoTune module to ensure that the engine constantly maintains the optimum air/fuel ratio to maintain excellent throttle response, power and economy. Features Include: Easy Installation Increased torque and power over the stock system Maintains excellent fuel economy System properly self tunes aftermarket exhaust systems Adjust Idle Speed RPM Adjustable Rev Limit Speedometer Calibration Decel Pop Control Read Diagnostic Codes Running Statistics / Logs Engine Temp Alarm Live Monitoring Live Recording Map Analysis Feature Digital Tech Compatible One-Button Support California Legal Product ARB Executive Order # D-644 Requires addition of oxygen sensor bungs or an exhaust system with bungs 309-370: Fits 2002 to 2005 Touring models, 2001 to 2005 Softail® models and 2004 to 2005 Dyna® models with 88” fuel injected engines 309-372: Fits 2006 Touring and Softail® models with 88” fuel injected engines
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