Here is another workable swap from the KRAB . I just installed the cooling fans from a 2002 I35 into my 96 I30. You will have to shave a little plastic but they easily fit! Also, you must lengthen the harness wires to reach the new fan but after that it is plug and play. The old computer runs these fans and you will get much better cooling if you're running boost. They pull more CFMs because they were made for the larger 3.5 motor. I highly recommend this swap in a hotter climate!

 

sweeeeeet write up? :P