I've been a little surprised at how many people on here are willing to shell out $90 for a filter, adapter, and bracket considering that many of you seem to be skilled fabricators who could probably quickly weld together an adapter and bracket and then get a K&N cone.
I don't have a welder but I've been thinking about putting together a "shower drain" adapter made out of ABS. There have been plenty of negative things said about PVC contraptions, but ABS seems to be preferred.
I've also been looking into putting together a pipe to the TB made out of ABS, aluminum, or steel... but I need to figure out how those materials react to heat and what they could possibly be wrapped with or painted with to keep the inside from getting too hot.