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Emission Letter from Vironex

This Emission Letter from Vironex addresses the emission system on Aero Cruisers that have a 1997/8 and 1989 engines that are exempt from catalytic converters.  The model year of these Aero Cruisers are generally from 1990 and 1991.  One can find Emission Sticker is on the side of the Air filter in all Aero Cruisers.  Here is a photo of the Sticker from my 1990 23 footer twin bed model.  The regulation number reads 40 CFR 86.1101-87 (Subpart L).  The compliance level is HC 1.7, and CO 36.5.

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