Not a problem mate, happy to answer any questions you want to ask.
There is always a lot of confusion in dealers adverts and I guess the Nissan dealers have the same problems. The best and most definitive way to be sure is by asking about the double intakes. The 313 engine needs the bonnet with the bulge so it will fit. Some guys put the new bonnet on the older car though so this may cause confusion.
Double intake = 313, 100%.