I'm interested in the 80mm MAF not for its size, but because SP Motorsports suggests that it doesn't need to be recalibrated half a dozen times.
"With a 45% larger bore than stock, this light-weight plastic direct replacement MAF comes with its own Duratec-specific electronics, a large cotton gauze cone filter (replaces stock air box), all tubing and mounting hardware, and doesn't require custom software! It will support all the upgrades you'll ever do to the Duratec engine. Expect gains of up to 8 hp on stock engines "
For me, it's either the 75mm with the optimizer or the 80mm that "doesn't require custom software". I wonder if that's a good thing or a bad thing...
