I don't know the flow characteristics of the car...so I can't comment on that. My SVT has 85,000 on the stock WP, and she nevers reads hot...even stuck in traffic in GR! I think if you think about air coming up thru the engine bay, and exiting out of the back of the hood...maybe good?
I really didn't do the mod for any high-speed gains, but rather to let the engine bay heat have a place to go when in slow or stopped traffic, which is where the dreaded heat soak hurts the most.
