What you have created is a hot air intake. Your tubes are sucking air from inside the engine compartment. The Needswings tubes are larger than the stock and locate in front of the radiator. The stock tubes seem to have much more baffling in them. The NW's is pretty much a straight thru type deal also teflon coated. I'd like to see NW's come with something that fits the lower grill area and forces the air into the intake that way. Althought Crossfire Ltd's looks really nice its basically a hot air system.
He drives an XLR nowdays anyway!