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      10-14-2008, 03:05 AM   #6
Alan S
New Member

Drives: E90 M3
Join Date: Sep 2008
Location: Rancho Palos Verdes

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Try Rejex

Rejex works great. It is used by the US Military to clean off exhaust residue from Blackhawk Helicopters. After the initial application, you should be able to remove any exhaust reside or tar with a damp rag. You can even put it on the inside of the exhaust pipes to keep them clean.