I wanted to know your knowledge of chipping your ECU. I've got a Mk3 2.0 16v Ecotec with 136bhp as standard. I was quoted that a superchip upgrade (Program & testing on rolling road) which cost nearly £300 would only give me between 5-10 bhp extra. Is this right and are their any other chips that are good for my ecotec engine.
A friend of mine has a Smart Car which he has had chipped which gave him hearly 25 bhp more at a simalar price. Thanks, Brian