Reading other posts about chipping has me confused. Granted, better shifting is desired to keep the tranny from exploding. but why not just get a shift kit instead? If you were to install a shift kit, will that null the chip? What I want is HP gain, a good amount of it, say 10-15... but by getting it chipped, will it kill gas mileage? what I really want to is run 2 progs. I want a peak perform setting and a factory/fuel effecient setting... I dont wanna run around everywhere running premium fuel, I cant afford that. another thing is, is this type of mod for me, or is there something better I can do. I'm not exactly the brightest when it comes to engines, i dont even know where the chip will go, so even if i get it, i dont know where to put it... do they come with instruction, or is it Chilton time? and with my luck, I'd prolly break something... anyway, i think I should just stick with accesory mods... that way I hopefully wont kill my car...