So... one of the things that showed up on the post race inspection after 'Vegas was some differential fluid that pushed out the vent and past the woefully inadequate filter that I had been using. I had expected problems there but at that point in time hadn't found a solution that I felt I could depend on (and by depend on, I mean something that I could have in the trunk that wouldn't stink up the entire car while properly doing it's job).
Fortunately I decided to give Mike Norris (Norris Motorsports) and John Parsons a call after seeing their new fuel breather on Steve's car. After a bit of discussion they came up with a clean, simple, and (hopefully) effective solution that I just about have installed and plumbed...
The basic components of the kit as supplied is the breather itself and a tidy billet mounting clamp:
When the breather cannister is dissassembled you can see that this is more than just a simple vented catch can:
Drain holes allow what differential fluid is collected to gravity drain back into the differential while at rest:
