Hi, I have a spotless '04 T5 with around @210 000kms. It feels and drives like a new car, until recently I noticed the CAT light come on, and she surges briefly for less than half a second on acceleration. It only happens every now and again, and sometimes the light is not on. Any thoughts? Should I remove the CATS? We dont have emmission testing, so that wont be a problem. If so, how is it done? HEEEEEELP!