I wrote this on Sat Jun 12, 2010 5:36 pm. While gas prices have skyrocketed since then, it's more relevant today. I was running 35s and 5.13 gears. I documented everything by keeping notes and using a Delorme PN 40SE GPS receiver.
...........I've had a little to much time on my hands today. I have several heep mods, that are on hold, waiting on parts, money and/or solutions. I started thinking (always a bad omen) about this intake. I am an original "Mac prototype tester". Late in the development phase but, a tester none the less.
I can conservatively state I gained a mere 1 mpg with the MCAI. You have to keep off the skinny and properly maintain your junk to do this.
This past Xmas I split from wife 3.0 and started doing a 200 mile commute for over 4 months. I just did the math for 16 weeks at gas being $2.65/gallon. It was higher and lower during my commute. In four months I saved $505.49 with this intake. I could have gained 1-2 more mpg dropping to 65 mph from my usual 74 mph. H*ll, now that I've done the math, I should have driven slower and I would have had the money for some beadlocks