Yeah I was thinking some samco style Pipe from the intake to the airbox would be beneficial as obviously the B16 pipe needed to fit this is a smaller diameter than the B18 throttle body if you have a B18 Swap, Which I do! Making the intake pipe a VERY tight fit on the TB!
They need to make a carbon fiber intake pipe that would look good. I think i'll be getting one of these carbon airbox soon hope they have plenty in stock.
That's not true, unless you have a velocity stack in the airbox at the entry of the piping towards the throttle body and at the entry of the intake piping behind the bumper. The velocity stack have a big contribution to the power gain.
Nevertheless, your mod is a really nice one since it costs almost nothing but does free up some power