[HWYSTR455]

FMG did a test of the Flex-a-lite brushless fan against the SPAL brushed fan and they were close to identical, with the Flex-A-Lite have an advantage in not only cfm, but the fact it was brushless too.

EDIT: The Flex-A-Lite brushless is half the cost of the SPAL brushless too.

https://www.youtube.com/watch?v=UQiJAYsLgd4

His shroud allows for the use of 14" fans where most only use 12" fans.

I thought the dual pass LS fans had narrower tubes? If that's so, then the wider tubes will win out.

I'm not having issues with the dual 12" Derale setup I use in both the 442 & GTO, BUT, the GTO does run a little warmer, and it certain demand situations does creep temps (like when AC is on). It's about a 10 degree diff.

Going to dual 14" fans would solve that issue on the GTO, and believe the diff is additional displacement (495ci vs 535ci) between it and the 442.

I don't have a space issue, but the brushless fans are around an inch lower depth/height. Could make belt changes etc more comfy.

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