I said all along I wasn't going to change the exhaust on the FZ but because I like quiet bikes. Now second thoughts are starting to creep in. The db killer only loses 2-3 horsepower and losing 8 - 9 lbs. would be nice plus I want to hear the triple wail. So, at below 6k rpm, how much louder is the carbon Akra with db killer than stock? Above 6K rpm I don't care because that's only for short periods and usually no one else is around. Informed subjective and objective replies appreciated.