I have an untouched 98 cobra and was wondering about a few mods. I want to change gears but I dont want to lose too much driveability as it is my daily driver. So would 3.73's or 4.10's be better? Also with changing gears is there any other things that should be changed to the car to cope with the gears? I have also heard of a programer that can adjust timing, adjust the computer to deal with gear and tire & wheel changes. I can't remember the name of the company that makes them and was wondering if anyone knew? Would it be better to get a chip than the programer or vice versa or could I use both? I also wanted to know if anyone know if an x-pipe put out more horses than an h-pipe or is it the other way around? Any other ideas for mods would be nice. Thanks.