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Originally Posted by Chowbow

Anybody looking to DIY an oil cooler, here's an extremely useful piece: http://store.bimmerworld.com/e3646-o...kit-p1027.aspx

It basically lets you screw on -10 lines to fit any oil cooler.

I also saw this for the E46 M3s: an oil cooler diverter which diverts 100% of the flow into the oil cooler. Looks similar to the plunger in the E9X ones, but I'm not sure if it actually fits. http://store.bimmerworld.com/e36e46-...alve-p980.aspx

I doubt this would make much of a difference on cars without upgraded oil coolers. I would give it a try but at $80 I think the money is better spent on a better core.