ARM Motorsports N54 INLET ADAPTERS - 2" To 1.75"30 Day Money Back Guarantee IN STOCK PROFILE The ARM N54 Inlet Adapters give you the ability to use 2" N54 Inlets on your stock N54 turbos. The ARM N54 Inlet Adapters are the perfect solution if you want to upgrade your inlets while running the OEM N54 turbos, but are planning on installing upgraded turbos in the future. This will save you the expense of having to purchase two separate sets of inlets, one for the stock turbos and one for the upgraded