Hi Ash92, Well you don't "Chip" anymore not since 1988 sierra cosworths! anyhow it's just a reprogram of the ECU flash memory loaded via the diagnostic socket. So it's not eproms having to re solder into the ecu's PCB. But this is the most bhp & lb/ft per £ you'll get. 2nd is possibly remove the cat for a de-cat pipe or at least a sport cat. Air filter is recommended i'd say just a performance panel replacement till you get serious would be fine. but still any mods you do need the software tuned to suit to get the best out of any mods.. this is because the default tune is set for the â¬uro emissions standards and not max performance.
Biddyy.