That company hasnt yet replied to any of my Emails, but during discussions with various others, it seems that no internal major engine modifications are done by the companies that have responded. Some companies advise an Intercooler to reduce thermal stresses though.... HP increases of around 20-30 BHP have been quoted to me...

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http://i190.photobucket.com/albums/z...0TDnoplate.jpg

Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....