I saw this add on facebook and thought this might be of interest
http://www.shopskutr.com/Honda-Servo-Buddy_p_24.htmlThe Servo Buddy is a small, lightweight solution that eliminates the need for the exhaust servo motor in your Honda (Sometimes called EXUP valve, Ex-up valve, or Set valve), which is not needed with any aftermarket exhaust system. Typically when you purchase an aftermarket exhaust, the servo motor controlling the restriction valve must remain connected, preventing the FI (fuel injection sometimes mistakenly called the F1) fault light from illuminating on the dash board. The Servo Buddy replaces this servo motor with a small, lightweight, and reliable alternative.