On the its first and only page the copy should read like this" This is a 4 into 1 performance system built for an experimental Piper PA-11. Constructed of 321 stainless steel and purge welded this custom system made a nice installation. The customer reported that he had an immediate increase of over 100 RPM by installing this system.

At Plane Exhaust, we are fully committed to the health and safety of our customers, our community, and our staff.

We will remain open for business while taking precautionary measures to clean our facility throughout the day.