I searched for ages in the For Sales and finally found one, (Autobahn88 brand) but it doesn't work with the Stock Airbox. (Pod Only)
So I ended up getting Scotty nm35 to make me a custom one. Works on both Pod and Airbox.
Not Cheap but it is a Work of Art. P0RN PIPE!!!
A mate of a mate, years ago bought an Ex Police Clubsport from Auction.
It was definately Not Stock.
I thought I heard somewhere that they Chip them, Maybe Head work and raise the Compression?
Also better handling mods.
Although my car has 4 doors and can legally seat 5 people, being She is one of the "Ugly Ducklings" of Skylines and not as "Cool" as a GTR,
I am Not offering my services.
Sounds like Fun though.