As documented on
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1431489495/0 we're working through the backfire issues on my wife's new to us 2007 S40. We'd like to get it running right all at once, with no need to go back and do things over.
Her stock Suzuki muffler has road rash from the PO, and we've read the sticky on replacing it with a Harley muffler, either a Dyna, Sportster, or Softail.
1. This offers a freer-flowing exhaust which should lead to performance gains, assuming a properly re-jetted carb, correct?
2. My wife does
NOT want her S40 to sound like a loud, obnoxious Harley. She is happy with how it sounds now, and does not want to swap mufflers if it will make her bike a lot louder. How much, if any, does the Harley muffler swap increase the decibels?
3. Of the three Harley mufflers in the sticky (Dyna, Sportster, Softtail), are any of them noticably louder or quieter than the others? How about compared to the stock S-40 sound?
Thanks.