Originally Posted by mojoman
I'm trying different types of methods, seems its difficult to completely eliminate the high pitch whine. I tried a long foam tube with a foam air filter on the end and its still pretty loud. The factory exhaust muffler works fine I have plenty of room under the van to work with.
Webasto has an intake muffler:
12$, it's not even worth trying a DIY method!
Ford Transit Camper Van | FarOutRide.com
2016 Ford Transit High-Roof, Extended-Length, camper van conversion for mountain biking & splitboarding adventures.