[Official] "Which intake should I buy for my Z?" thread.

[shadoquad]

It is in the "Tech Section"

Personally, I have the Injen Long Tube Cold Air Intakes.

As far as the whole range, you can get a bit of a bump with less restrictive air filters, like K&N drop-ins, and it won't change the sound much.

You can get Short Ram intakes, but that's only a small bump and is louder.

The long tube CAI's give the most power, and they are also louder. I preferred Injen to Stillen, but only because the install requires only the replacement of the washer fluid reservoir, while the Stillen install is marginally more difficult.