[Karl Bebout]

Phil, I'm using the same nomex honey comb from Speedway that Ed referred to. Plenty cheap, easy to trim with everyday scissors, almost bullet proof. I used some industrial strength Velcro to install thinking that if I lost some cooling capacity, I could easily remove it. I do run at an additional 5° in our Arizona warmth, but that's livable. Its not as "pretty" as a nice aluminum radiator, but is barely noticeable and I can easily put up with the appearance while greatly reducing my chances of getting stuck out in the boonies with a blown radiator. Just my 2¢ worth.