1.) Is there a muffler available that is quieter than the Bennett (B&B) Style for my g-45. The stock muffler that came with this engine is very wide & will be a tough fit in my cowl.

2.) Any suggestions for the best prop for the G-45?
I have a G-23 & the Graupner props work great on it.

3.) Are there any adverse effects from mounting the motor in a
45 degree offset from the upright position??

Any opinions would be appreciated.