Don't get me wrong theres room for almost every stock part. But the way i see it is air is going to find it's way into the runners. And it's not like there all open at the same time. What im trying to say is I don't think there being starved for air. Any of them. Especially due to the fact that were boosted. Could there be an improvement for better air flow? maybe. Would it result in more horsepower? I doubt it. why do i doubt it? becuase there not starved for air to begin with.