I talked to the Banks tecchnical person who of course said that their 4" exhaust system is not that loud and he recommended it for my 03 H. O. Then I talked to Dave Muench of (DPP) and he recomended the Aeroturbine exhaust recombiner to replace my stock muffler. I am looking for quiet power like stock or close to it. My wife insists, so I need some sound Hee! Hee! engineering advice so I can get this rig sucking fueling and blowing with out the noise issue. I had a 2001 and that was enough noise fun, now it is time for the realy smart guys or gals to come up with a product that "for sure" (as in don't waste money experamenting) solution. I really think there is big $$ if some body can engineer this with good old American know how. I had three of the biggest Dynomax mufflers and two Dynotec Vortec racing silencers in my last rig and it still was not quiet enough to be comfortable on long trips. Now that is the extent of my engineering skill and it cost me $1400. for this keep on trying effort that failed on my 2001. I would really like to hit a bulls eye the first shot here so come on with the commentaries. I am thinking a Banks system with two Aeroturbine extractors??? Hit me hard and fast because I need to get to bombing this new 2003 thing right now, it is already 4 days old. Billy & Jackie Adams :{