just out of curiosity...are you taking in account that your gauges are off due to the larger tire? My gas mileage appears to have gone down considerably when I got the 31's but I also know that I fill up on just about the same regiment that I used to. Bigger tires will mess with your speedo...trip...and Odometer. Unless you get the electrical component to correct the signal. The difference for me in speed is somewhere a little less than 10% Meaning (using exactly 10% as an example) If my speedo says 10 mph I'm actually going 11 mph. If It says 60 I'm really going 66. See where I'm gettin at? Also if you think about it. Your power loss comes from heavier tires coupled with seeing your speeds off. You probably know all this but it's nice to re-itterate for the people who don't realize it. <img src="/forums/images/graemlins/kewl.gif" alt="" /> <img src="/forums/images/graemlins/cheers.gif" alt="" />