Actually, when we're talking about horsepower, BOVs, and pressure - we're talking the cold side - we're talking about forced-induction. That means we're talking about turbos (in the ST) and that has everything to do with horsepower being relevant to pressure. It is especially relevant if I decide to upgrade the turbos to create more horsepower.
But thanks for letting me know you're swapping out the plastic fantastic for an aluminum product. I get it. But. if there isn't really any pressure here I'm not sure why you'd replace it - ah, what the heck. It's just money.