[fragdude]

The oil impregnated cotton filters on the intakes were the problem with the MAF. There is a member (grizzly i believe) who has swapped it for an AEM dry filter (not quite as good clean performance, but it stays fairly constant) and from what I've heard the stock airbox moves enough air for a stock engine.

If the dry filter really helps get rid of the MAF problem (from what I've heard its the oil, but freer flowing filters let more particles/dirt in as well) I would consider getting an intake for just the sound.

Outwear covers are nice for filters that are exposed to the elements. I have one on my '87 911 that has the filter under the A/C condenser.