1.9 xr2 on 40's- mine is ofab it is the right chip as it has been on th car for a while now, the guy said that lots hav gone wrong due to who fitted it not making the connection stronger as its just a plug in unut thats why "superchips" always say use some tape on it to help take the strain.. but re-soldering the back will make it better im told..but they did also say if it is the chip they will get a new one and map it to my car for free if its not the chip they are going to charge 60 +vat for the job.

reisskahn-they are low comp MAHLE pistons