Dar
I sent an email a couple of days ago and have not had a reply. Their web site doesn't have much information on it at this time. It says it is being updated and will be back about Nov 3. I just thought someone would have some answers on R C Universe. Maybe it is too new of an engine and is one of the first off the production line so no one else has any ideas either. The instructions that came with the engine were in both English and Italian, but did not mention any exhaust system beyound the adapter.