mattyh3 said:I had a plug and play eco box on my old astra 1.9 diesel and was impressed with the increase from 150bhp to 206bhp on the rolling road test but the economy was good before I got the box I would do 52 mpg on motorway journey but with box on I got 67mpg. So am trading me old box in for one for me ds4.
See there is comment about another thread but I can't find that one so will add my comments here.MSH said:Don,t intend to have this done myself. I'm interested that you say "for economy and performance" . I would have thougt you could tune for performance or tune for economy, but if you can retune to obtain both, why didn't Citroen or other manufacturers use that mapping spec from the start. However I'm no expert.Hope it goes well.