Here's a comparison shot against the monster "stock" pipes...it looks as if someone has done some home surgery on these at some point

and here is a quick pick of the pipes installed. Here the db killers are still in but they sounded restrictive (and judging by the shape of them...like a monster cigar...they probably were) and now the pipes are running open. Sound isn't too loud by any means and some of the old girl's asthma has cleared up. Recommended

