[roddy]

It may be possible that the extra heat from an un-shielded exhaust could come into play, but I kind of doubt it...someone (s) would have posted such a problem by now. I hope the problem is a simple as the following...I have found that the factory spec (I forget the number now) for oil fill is a little high. I typically find mine is full at between 5.3-5.5 litres. Overfilling could lead to seepage at the dipstick tube which would take a while to build up. Personally, I would clean it up and keep an eye on it for a week or so before I got too worried. If your oil level hasn't been dropping much, it will take a while to accumulate enough to see where it is coming from. Then think about taking it to a dealer. There have been others that have had a similar stain, and it turned out to be the timing cover gasket.


On a side note, did you run the header through the torture of winter driving? How did it stand up to the salt and temperature extremes?