Fired up bike upon removing stock insert. Now that's the way a 4 stroke is supposed to sound
Too bad that dB level irritates the non-riders and results in closed riding areas...
The install of the new insert was quick and easy. None of the poor fit problems often experienced with various aftermarket parts. This is a quality piece.
With the end cap back on, only a well trained eye would detect a non stock insert. On the 05 the insert does not stick out past the end cap.
The low end is unchanged. Mid range is perhaps marginally better- a bit more responsive, quicker revving. Top end seems improved.
The greatest improvement was decreased heat. Big difference. Before I felt the heat radiating off the pipe and muffler. Hardly noticeable now. Right after a 30 minute ride I was able to grab the right side grab handle inside the # plate. Impossible to do that without gloves before. I was also able to brush my hand across muffLer immediately after shutdown. That wouLd have been a burn with stock insert...
I suspect the exhaust
temp decrease is a fairly good indicator of engine temp decrease.
Most importantly, the exhaust voLume is essentially unchanged. Perhaps slightLy louder, but minimal.
Money well spent, in my opinion.
ps- got back from ride and noticed the copper gasket sitting in tool box. Oops. Anyone know if this really matters? Can't see any harm to eliminating the gasket.