I am seeing other air intakes, such as Stillen, etc. This seems like a good option, and would eliminate the high air intake noise I'm sure, while also adding some power. Has anyone done this?
I've heard of a few that switched to the Stillen. It will lessen the intake noise but you'll still hear the turbo a bit. Supposedly it will increase power but I can't imagine by too much. I haven't looked into any independent Dyno numbers.
Supposedly there is a somewhat common issue of a sensor getting fouled by the oil from the air filter when driving in heavy rain uphill. A few people have replaced theirs with the Stillen and a dry filter to get around this.