Ok here is a stupid Q to ask ... I really dont know what they are called but... what is that bar that hold the tires in place in the front of the car? Where the C-B? Joints are located ...

But my real question is are there any upgrades for the 2002 sunfire ?

i'm looking for one that can handle 500+HP

well there are a couple of things that hold the tire in place at the front of the car, one is the tie rod end which is conected to the power steering rack. dont think there are any upgrades to those. then you have your upper and lower A arms. and i think that there might be an upgrade for the lower one. also the proper name for the joints is CV Joint because it stands for constent velocity joint. you could also call it your drive axle or your half shaft. and i know that someone out there has axles that are capable of handling up to 500 hp i think. but they are only for manual transmissions.