Improvement :
My old outrage pipe's baffle broke. So I had to upgrade. This is an upgrade muffler
This muffler is better design. Not any lighter than the others. Has a better displacement and exit designs . EVO muffler line is a line of mufflers for Rc cars. Outrage teamed with evo to make this.
It's tuned for this size engine .. ESP this company... So basically.. This pipe is supposed to open up a bit more power on the engine... So better back pressure too. Thus making the engine a bit better fuel efficient as I can lean it up a wee bit more and that means a bit more power
That's the theory.. But we'll see in real flight how it does.
Fly safe!!

have fun!