Did it help your temps any?
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Yes it did. It is an inch over stock thick. Take this FWIW, no factual data here, just my experience. Don't know if my old intercooler was just plain wore out,dirty, or oil soaked from the CCV, but unloaded, with a race tune, used to hit north of 1750° on a WOT run. Now I hit around 1450° and it cools down way quicker. Not too much noticeable while cruising, course it is so humid here and sometimes traffic is so bad, it is hard to maintain a solid speed for a cruise sometimes. The 7.3 intercooler, well, for some reason would not hold boots on it, not even with new boots, I couldn't be aggressive with the truck with one blowing off. Also, it felt like I lost some mid range power. I felt it made my turbo spooled a little quicker though, but then again, the 7.3 cooler is smaller than the 6.0 unit. I ditched the 7.3 cooler for the CSF, wanted a Spearco, but the funds weren't there. No regrets though.