Step 5 of the Cyclesolutionsonline.com and Boxoflube.com 2005 Softail Duece build. Installed is a Auto Tune Thundermax by Zippers. A noticable increase in torque is seen on the dyno graph. Engine temp has been reduced considerably. Excellent throttle response and perfect fuel delivery round out the package. www.boxoflube.com pre-maps these units and sends them to your door ready for installation. 765-768-6000 call for info!
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