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I fly a normally aspirated Lancair IV and love it. However, on final approach
when bringing power back, I get a lot of popping out of the exhaust pipes. I
don't believe it is harmful, however, it is disconcerting to folks on the
ground and in the back seat when it happens. I wonder if any other LIV or ES
drivers are experiencing this and if they, or any of our other knowledgeable
listeners out there might have some useful input to resolve this condition. I
purchased the standard IO-550-G exhaust system from Lancair.

Fred Egli
N1228E
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