RE: Tower Hobbies Razor 3D GP/EP ARF 52
It was a tough decision. I like the Bisson style muffler, but it is about 1/8" wider to each side than the cowl/fuselage. Doesn't look too bad though I was initially unhappy with how much cowl I had to grind away.
The advantage is I get access to the plug and carb and the exhaust is away from wings and empennage.