Yeah crawling under a car In the rain is no fun is it!Great progress, I crawled around in the rain under my car today, nothing as successful as you! with that intake have you ever considered taking the air from the windscreen bulkhead? just a quick 90 degree bend and you've got a cold air randell-style intake to the supercharger.
There isn't quite enough room to get a proper randal cowl intake in there,
but I am planning on making a little duct out of some left over pipe and steel plate,
Hopefully it will be able to feed cold air down onto the filter from the scuttle! And also make use of the air from the TSI's