i mainly followed mcgilles' step by steps. but since his is a SHO and i assume his MAF is bigger because i had to use 3 inch peices and he used 4 inch peices. but i basically used a drain that i cut all up and made look good to connect the MAF to the Flex pipe. then i used to idenicle toliet fixtures that where also 3 inches screwed them back to back to connect the filter to the flex pipe. this was very easy if you have the tools to do some work on the peices...oh and i used silicone around the fixtures also. but if you want i can take a camera into lowes and take pics of the exact peices i used...but the costs are as follows: (around the right prices)
3 inch almuminum Flex air duct-$5
drain-$10
2 toliet fixtures-$3 a piece
APC Cone Filter-25
bolts, nuts, clamps-$5
Fenderwall CAI - priceless
lol total - $51(depending on filter)