Thanks Matt, my only real concern is the longevity with the engine. I don"t really need the noise reduction so I will hard mount but I wanted to go with a pipe on this one. Even with my DA 50 it seemed as if I was replacing bearings and carbs every 200 flights or so. Funny, with my 150 as long as I ran clean fuel and good oil I didn't have to even think about it even after 500 flights.