Corsa mufflers transom mount
 

Corsa ASR 6.5" Tunable Silencer, Transom Mount, 90 degree exit, 4" inlet Exhaust Tips with Flaps. Corsa #12650-1T.
These highly polished stainless tips Measure 10 1/4" long (away from transom when mounted) and are 14 1/2" long overall.

Test time only. Look new. Up to 600 hp engines.
They have a list price of over $600 EACH!

$350 each
847-404-5975

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No moving parts and they really do work well.