I wanted a cold air intake for my 1991 Pajero. The rubber intake was 2.5", so I bought some 2"ABS pipe, a 2"-3" coupler and a High-Flow K&N Filter(part#E-1796)with a 3" flange from Canadian Tire(Part# 41-0108). Most of my driving is on the highway and the stock air box seemed very restrictive. It took a 1/2 hour to remove and install the filter. I will be building a lower spray skirt to protect it from the elements and I will be staying away from big puddles. I have noticed some extra power and gas mileage. The only flaw is I can hear the turbo whine more. If someone can tell me how to post pics I will.