I bought my IM yesterday with the 6 speed manual. i commute pretty far everyday, i put about 25k miles on my cars a year so I'm wondering what are the best mods to do for mpg's? I'm thinking the H&R springs to get it lower. have you guys seen any difference in mpg with different intakes, exhaust, ect? i was looking at the intake mod, hps, or AEM. i don't like cold airs because i drive in bad weather a lot. what have you guys experienced, or what do you think?