http://www.evanscooling.com/npg/

Anyone have any experience here? This is the first time I've ever heard of such a thing.

BMWs are known for having their PLASTIC (yes, plastic) radiators explode.

I just picked up a myriad of items to basically replace the cooling system on my own BMW....

I have a link to a BMW forum that has a long thread discussing this very thing...PM me if you're interested in seeing it.