like i said, everyone has different opinions. i've done my fair share of turbo, nitrous, and aspirated street and race bike.
for the sake of not having a debate in someone elses thread, i will just say we agree to disagree on what bikes need HD output shafts and what bikes dont. your experiences have led you to believe a stage 1 street bike needs one, and mine have led me the other direction. i'm fairly certain at this point the OP is more concerned about fixing whatever issue is preventing him from riding his bike anyway.