Cold air intake?

i have a 2001 malibu LS. 3100 V6 I have been searching everywhere possible on the net to buy a cold air intake for my ride. but they only have the intakes for the 2.4 Liter malibu. does anybody know where i can check out and order a cold air intake for my car on the net?

Check out http://www.rsmracing.com and http://www.doctorspeed.com I've heard it said many times that the intake from doctorspeed will fit a Vortec 3100 (3.1L). RMS racing says right on the site that theirs will. I have been looking at getting one myself, but have not yet. Has anyone had first hand experience with a cold air intake for the 3100 and can share some advice ?