cheap ebay snorkles
I have just fitted an eBay snorkle from this link:
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=270746915376&ssPageName=STRK:MEWAX:IT#ht_4572wt_1139
Despite other posters saying they got a decent price on genuine Nissan, the Canberra Nissan dealer quoted 460, plus fitting.
I chose this snorkle as it is LLDPE plastic, not ABS or unknown, and because it was cheap.
When it arrived, it looked the goods. There was some pitting of the plastic, looks like an average moulding job. Certainly nothing that will effect operation, just asthetics. Personally it is no problem to me. You can actually see what I am talking about in one of the close up photos on the eBay ad.
the threaded fittings are all of good quality.
The template was accurate, once you figure out where it is meant to sit. there are no instructions with the product.
Installation was a PITA. There is a single moulded piece of plastic that fits onto the original airbox and goes through the factory guard hole. This requries taking the guard off to get it through the hole.
Also, the triangle piece that connects to the original airbox was a bit malformed and needed filing out to fit over. I also had to drill a hole with a holesaw into this piece for the intake air temp sensor. I used the original rubber bung.
I would also buy some plastic guard clips, I am normally good with getting clips off, but the nissan ones were a fight, and I lost it and broke some. For $12 for replacement ones I would just tear them out. Mine were brittle and un-cooperative.
Overall I would buy it again for the cost saving. the end result is a good sealed snorkle, which looks great, for $236.
Apart from normal tools, you will need an 80mm (or slightly larger) holesaw.
The biggest leak I had was from the factory airbox rubber seal, which I have removed and replaced with some rubber of the right diameter.
Hope this helps.