This graph shows Step 5 of the Cyclesolutionsonline.com and Boxoflube.com 2005 Softail Duece build. In this part we have installed 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. We can pre-map these units and send them to your door ready for installation. Call us or email us for information.