So i ordered a rtek chip for my s5 t2 and chose to do the install myself. i opened my ecu up and found this inside.





i bought this ecu from some guys out of japan on ebay but its been so long i forgot the company. there is no company logo on the outside of the ecu casing or on the inside. ive been trying to run this ecu in my car for a while now and had no idea it was already chipped!