I removed the stock baffles, and welded in car glass packs sound is different than other exhaust. Used 12" x 3 1/2" blank packs on wifes 1300 and 18" x 3 1/2" on my 1800. Both bikes run great without any other mods. The wife's bike picked up a little performance. I have tried to record them but they don't record true to the sound. Many complimants on both bikes. 1800 sounds like a monster when you nail it. Will try to get some pics later. I am a welder, designer and fabricator by trade and a mechanic. Not responsible for any damage to bikes.

http://www.youtube.com/watch?v=HLz6OXFNm2E

http://www.youtube.com/watch?v=q6F0Vkx-qjs

http://www.youtube.com/watch?v=NOZjb2frwDc

http://www.youtube.com/watch?v=ky80-KuLpEo

http://www.youtube.com/watch?v=SFGVBOamXO0


http://www.youtube.com/watch?v=KEsCSyApWHk