Don't bother for the 3ltr. Seriously. You won't need a fan on the IC. I did it on my old 3Ltr and it made zero difference to EGT's. Get a proper air scoop for it. The factory scoop it useless. Im not sure if A.R.E Cooling still make one but I had theirs, fitted up to the factory mounting holes, the scoop was taller to catch more air though.