The four models of 304 alloy Stainless exhaust systems cover almost all airframe applications. They are light weight, and very durable. Purge welded by TiG method in my shop, they have a perfect track record in 15 years of production. Includes the clamps, graphite gaskets, and the heat muff box ends. All exhausts are equipped with an 18mm port for an O2 sensor, which supplies information to the Air / Fuel Ratio meter. Exhausts are the same price, builder specifies which airframe it is for. Made in USA
#3901-A Fits all models of Zenith aircraft and the Bearhawk LSA.
The exhaust systems below are special order. Lead time is typically 3-4 weeks.
#3901-B Fits KR-2 and KR-2S airframes. (Referred to as a ‘universal #1 exhaust)
#3901-C Fits Wagabonds and other classic (Referred to as a ‘universal #2 exhaust)
33901-P Fits Pietenpol’s using my ‘high thrust line mount’ (#4201-C)
Sonex/Waiex airframes and SPA Panthers have unique exhaust systems available from Sport Performance Aviation.
Read Conversion manual for a complete description. Read related stories for operational information. Watch Youtube Videos for more visual perspectives.