i just watched a s&s install video where they installed a air cleaner and slipons. The tech said on 07 bikes and newer no dyno or tuner is needed. Then i do more research and people say to do it. why is this such debate? Right now i have the s&s stealth and cycle shacks on it but havent been able to ride it since the air cleaner install. its snowing and 15 degrees. i plan on doing a thunderheader/ road rage/ pro pipe with my taxes about to be here. what should i do?