Hi everyone I got astra J 2012 1.4 petrol n/a engine 100BHP, i've done my research on pedal box and will definetly purchase it soon as it does make a difference, i was wondering is it worth ecu remapping with only 10% gain bhp whilst at the same time using pedal box? Does anyone have same car is there any mods you done to make faster? My only problem is after 50mph it just goes up slowly not enough to overtake safely.