Hi!
Does anyone know how long the exhaust header should be for best results when using the MVVS cannister silencer (No3206) on a MVVS 45cc engine?

The MVVS 3205 header is 15 cm long

Hi!
I know but I dont use it...The MVVS exhaust is too short and will not fit in my Peakmodels Yak-54. Instead I use Krumscheid exhaust tubings and my exhaust is about 25-27cm long.
Do you think this will work?
What is the "best" exhaust lenght?

Jan, don't worry and just go fly. A longish header will work better than a header that is too short.
I have posted some results on my forum, but alas, I cannot test everything on my own. Care to be of some help?