just thought id let some people know about a cheap way to better economy and get more power.i hooked up a 4" round pipe to the air cleaner end(i cable tied it), and a huge funnel to the other end a put it behind the headlight.not only does it run sweeter but its cheaper and 100km exceleration is great.all up it cost $1.95 for the funnel and i had the flexible hose in the shed.i know most people know of this but what the hell if someone get cheaper fuel and more power for that price its all good.unleaded xf's do have a cold air induction but its too small,but u can use the end that goes on to the air cleaner then cable tie your pipe to that,the end of an xf air cleaner is about $2 from the wreckers.im going to also modify the bottom of an xf air cleaner to fit onto a 350 holley,so i can have the cold air inductin but a stock look,so no one knows its not original.this would also be great because it will have the original filter which i can buy anywhere and the bigger the air cleaner the more power.this will work on any air cleaner that has a factory snorkel