Ive made a airfilter neck that sits on teh side of the motor with a buggy air filter and use a garden hose pipe about 4/5 meters long that goes into a 2 liter Coke bottle and placed on the side of my garage entrance on teh outside. Ive used a piece of high temp hydrolic pipe as a adaptor for hose to fit the stinger.
It makes a huge difference in noise.
I actually tried a 5 liter plastic container that made more noise than the 2 Coke bottle
Never had complaints.
Got the tip from a buddy in Cape Town who runs engines in for club members.
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