Ok., I was looking at the tech article on the web site
http://www.pelicanparts.com/techarticles/911_pop_off_valve/911_pop_off_valve.htm
and to me, it looks like the pop off value is backwards in the picture. It looks like it opens INTO the airbox, not to the outside. I'm thinking of tacking this fourth of july weekend.
Especially this picture
Am I just not looking at it right?
Thanks!
Chuck