i've been looking for an ecu chip on the bay but ive been going through the listings and theres chips offering a 15bhp increase and others offering up to a 40bhp increase and many inbetween.
ive just been wondering if anyone has bought an ecu chip off the bay ? If so, what bhp increase did it give? Also did it knacker the car up in anyway? As ive heard some chips can scramble the ecu and render the car usless without a reset ??