After several suggestions that we need an oil cooler on our race car we purchased a TCI 10"x15" 8 pass cooler with a 10" electric fan mounted on it off ebay. It will be going on our 1990 Civic Si. How have most of you plumbed in your coolers? Did you use an oil filter relocation kit or just a pancake adaptor? We figure we will just hook the fan up to a toggle switch and when the oil temp goes up we can turn on the fan.