i've been qouted £350 by chip tuning fer the ecu remap on my 105.they told me 10-15bhp but minimum of 10bhp,they also do a 14 day money back offer.if u fone them up they will tell u the nearest dealer 2 u.
TD performance r another,they claim 11bhp on a 105 n i was qouted £300.
a company which i cant remember name of,do ecu replacements,i was qouted £550+vat,but the guy who was clued up on what gains they give was busy n the receptionist could only give me the prices.she did say that they were easy 2 fit,u just unplug the old ecu n plug the new 1 in n away u go!they have an advert in total mg mag.
wega has had his 160 chipped i think..........look on members list 4 him n pm him n ask him about it......