i had a tsl full decat from the turbo back with typhoon rear box fitted to my03 wrx yesterday,i drove it for an hour after i had it fitted,i parked it up over night then drove it to work today and everything was fine but on the way back from work today the engine check light came on,but it still drove normally.i had a look in the booklet that came with the car and it said that if the light comes on then its something to do with the emissions being too high because it has an obd sensor???i'm new to all this so could anyone help with this problem?

 

anyone???

 

theres already a thread by someone with the same problem as u mate.