So I am possibly going to trade my miata (valued at $5500) plus $4000 cash on top of it for a 2002 WRX i found locally. The WRX has 127k Miles on the chassis and 50k miles on the trans. It has an upgraded 16g turbo, sti manifold, turboXs blow off valve, invidia downpipe, headers, catless up pipe and catless 3 inch exhaust all the way back, and greddy turbo timer. It also has an sti trunk and wing. Do you think this is a good trade? And also what are some things i should look for when i go to test drive it?