I have a 960 Wagon and my friend and I have ghetto rigged an intake for it... it turned out to be fairly easy. Buy a normal K&N Filter or generic brand cone filter that would go onto an intake. You need the 3 inch one. If you remove the air box you can fit the filter right in where it should go. This increased the sound and added a touch of power by increasing the effeciency. If you need help email me. We call this the Swede Speed Fix. It's all we have found to do to my Volvo.
Tristan@Willey.com or
Beetle29@yahoo.com