I would go with All alum. as my first choice, and OEM/TYC/KOYO - alum/plastic as a close second...don't bother with CSF as they have a tendency to heat soak and have slow heat exchange.Interesting read. My midwest cruiser is moving from Denver to California. I’m concerned when I see 203 temps, and turn off ac. Never really considered CSF as I’m all about OEM but it sounds like it makes good sense. Especially out west. Today in Canyonlands I had temp of 207 and intake of 151. Hot!
207 F moving or slow wheeling?