i drive all street mostley here in miami very rare that i get on highway and traffic does suck alot.. also i have been a little heavy since putting the x pipe but the diffrence was 10.6 without x pipe and now 10.0 with x pipe. i was thinking about getting some fuel cleaner and some other crap thats suppose to help. also was thinkin of putting a stage2 intake as thats suppose to help.. but yea. also tire pressure does it make that big a diffence i have not checked them at all ever lol they look full lol. so after every one comment im thinking i need to change some stuff. and the engine is the m62 4.4

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More gas mileage = more square feet to pimp
x5 4.4i
2001 topaz blue
x pipe
rear window shades
20inch chrome 4.8is wheels
angel eyes with color matched housing