wheres the mods

This engine could be so badass so where's the mods. If somebody has em i'll buy them I'm in the process of pimping mine up now. see, it's my beater car and the parts i have found for it are so damn cheap..i just couldn't help myself.
but so far all i've found that is of any decency is gravana tuning.
so does anybody know what I could do for cam gears/shafts...catback exhaust systems, throttle body (my girlfriend is convinced its from a lawnmower) computer tuning...there has to be some other stuff.

EBay has a couple computer items claiming to increase mileage and power. Don't know if they really work or not.

you could also try the aveo's sister car... i forget... a daewoo somthin or other. the drive train is the same. and there was some guy who seems to know what he's talkin about in the forum. i just hope the car can take more then the metro's and festiva's... aspires. for the size of the car ild like to see one blow away zx2,cavilier, or neon.