Just to follow up.....took bike to a good Vic mechanic. We ordered a power comander and a performance filter from S&S and he's gunna dyno it in for me. But in the meantime he gave me a K&N filter to slip in to see what I thought. Wow! What a difference that filter made. Bike hardly pops anymore, sounds and runs wicked. So whoever had bike before me musta had it set up and took the filt and exaust off when they traded it in.