They are about 1 1/2 inches square, made of plastic, louvers every foot or so, and run from the engine compartment to the rear tires. JohnY(Houston)said they are for gas lines and such and power steering fluid for HICAS. I don't have a turbo and I couldn't see any type of gas line on either side. Is johnY also correct that these (they are louvered from front of car to back) do not whirrr or hum and it's probably my tires? what else could it be?
Doug
Follow Ups
What are those vented tubes that run parallel to the frame? - DougG17:37:26 04/04/01