I was wrong. After looking again, it's a 290hp filter, part number C504D. It does need a backing plate made for it. I used the stock velocity stacks from the air box.
I didn't mount the air temp sensor inside, but Warp 9.9 drilled a hole and mounted his sensor inside.
I didn't like my knee being against the filter either, plus I didn't like the look without the bearclaw. So I moved the water bottle, shifted the filter forward, and trimmed the claw to fit.