BMW N55 Duct With Shield for V1 (M135i, M2, M235i, 335i & 435i)
The sealed carbon duct closes the front of the filter housing and stops heat from entering the filter area while still allowing some air entry from the cold side of the engine bay where the hood meets the wing, which ensures that it doesn't cause a restriction. In addition, the heat shield completely blocks out the hot air being pushed into the engine bay from the radiator.
Any existing customer can buy the sealed duct separately to upgrade their original Eventuri N55 intake system.
Please Note: The Kevlar version of this part is no longer available.
The filter housing is positioned with its opening sealed against this new carbon duct. This carbon duct has been designed to fit over the stock cold air duct and direct ambient air from the scoop into the filter. It seals against the engine bay heat whilst still allowing some air entry from the cold side of the engine bay where the hood meets the wing. In addition, there is a heat shield attached to the side which blocks the hot air from the radiator and the alternator from directly impacting onto the carbon housing. This shield reduces direct heat soak onto the carbon housing and therefore contributes in keeping IAT down.