spl440, you have any before/after performance numbers? I'm curious how effective cowl setup like yours is compared to the more common dual snorkel or hemi scoop. Cause I don't like the dual snorkel look on dusters, and the hemi scoop is a bit overboard so a streeter. I love the current raisin bran scoops on my car but they're non-functioning. I'm trying to decide if I want to fab something up for them, or something similar to your cow setup.