LoneRonin
Well-known member
Bike makers have engineers on staff who do computations and other things to determine what the stock exhaust should be.
There is rarely any reason to change what came with the bike.
Different exhausts can make small changes to performance and power output, but also decrease gas mileage.
If you're running around a track for an afternoon, mileage doesn't matter much.
If you're touring, it does.
those engineers aren't looking to make the best sounding or performing exhaust. All they're looking to do is make sure it complies with environmental regulations across the globe and perform decently i.e give good gas mileage. There are lots of reasons to change a stock exhaust beginning with looks and weight savings...