Pro performance x chip
 

I just bought this item on ebay, a performance chip, called x chip. I was wondering has anybody know if this works or is it going to cause problems for my baby? Thanks

Just wires into the AFM's harness or the coolant temp sensor's harness? If so, they're rubbish and a waste of time.

i would send it back. there is no magic chip for the supras.
while you were buying parts I hope you didn't buy the magic magnet that increases mpg or this
http://www.toyota-supra.info/forums/...my-engine.html