You bet your blast horn they are loud. I recently bought a new 2012 Speedmaster and had the dealer deliver it with the short TORS installed. Big $400.00 mistake. I had a 2009 Bonneville with the factory TORS installed from new and they were excellent. Not to loud at idle but enough to tell you that was no sewing machine running. Were great when revved and under hard acceleration they had good sound without being irritating. They were perfect. So naturally I wanted a set on my Speedmaster. Well they are straight thru. No baffling what so ever. To loud at idle and they never stop being louder at cruise or any where else in the rev range. What a disappointment. If only I could have heard them ahead of time. I'll gladly sell these noise makers to any of you (loud pipes save lives) guys out there. The first $300.00 can have them. I only had them on one day so they are as new.
Modmaster