slp flowpac
I could see the metal ducting that draws cool air from the bottom of the car useful if you're at the track a a hot day and you're hot-lapping your car, or don't have time to let your engine cool between runs.
As mentioned above, the real gain is the lid.
The bellow just makes the rid much harder to take on and off because the freakin rubber that the bellow is made of is barely flexable.


