Performance MRP is the performance automotive division of MRP Manufacturing, LLC. MRP is a trusted, top-rated seller on eBay; selling on the site since 2009. We are your source for High Performance Billet Aluminum Mass Air Flow Housings.
Another place to get a MAF housing and in various sizes, more than the Nissan offering if you search just their part number with no vehicle listed you can get a housing bigger than 4".
Got air straighteners and fab stuff.