It may be hard to see from the other photo's, What your looking at is the PowerMaf plastic housing in between two silcone couplers. Both couplers are two inches wide. I dont have part numbers for them and they are not spectre. Some brand that was supplied with the MAF housing. The coupler up at the throttlebody is also a two inch made by spectre. Heres a closer look-Hope this helps- Rich
