19:th-Feb-2016, 00:05:30
I've got a Bluespark chip fitted to my 2011 2.0CDTi (165bhp) Stop/Start Estate. There are 5 different settings on it. I've got it on the Eco setting now and there is about 8% improvement in fuel economy. Had it on the middle setting last summer when I was towing the caravan and there was a massive improvement in torque. I've not tried higher than the middle setting yet.