This mod does nothing to performance but improves the look and easy to clean engine bay
The original 996 airbox is awesome.... if you live in the 80's!
Suncoast had these for dirt cheap and I decided to try it and they even have return policy in case something goes wrong.
2 modifications are needed:
A relocation bracket for the smog pump (the new snorkel is huge)
One little piece of plastic that need to be removed in order to clear the locking hump.

Everything bolts right on. The new ducts to the TB, the MAF, cables, everything. The oil filler tube, rest on its place and the new snorkel aligns perfectly with the opening. You can still use your old 996 air filter!
Nothing more than visual improvement but I like it!
enjoy the pics: