Waco Ymf5 engine smoke effect

[FSX68]

I'm looking for the trailing engine smoke effect that someone created for the Alabeo WACO YmF5. It's not the wing smoke effects. When installed it would enhance the engine effects
and you would see a wisp of engine smoke trailing behind the plane. I think someone posted it here.

THanks

EDIT: I found them on SOH they were Racarton's v12 exhaust effects:

http://www.sim-outhouse.com/sohforums/showthread.php?72016-A2A-Nav-lights-for-the-Alabeo-Waco&highlight=exhaust+effects