Originally Posted by Dibby
Angel Tuning and Celtic Tuning do a mobile service, Red Dot are in Watford and you'd have to go to them. Any of those 3 should be able to reign in the turbo pressure for you. Those 3 firms know their stuff when it comes to Alfa engines so give them a bell and talk it over with them, they're the experts and they'll be able to tell you if it's been chipped or mapped. If it's been mapped they'll be able to read the data from the ECU and tell you who did it, when it was done and be able to fine-tune that spike out of the turbo.
Not all tuners in fact few leave signatures in the software so doubtful they'll know who it was tuned by originally. What type of ECU is it on these? Who are Angel, Celtic and Red dot buying there tuning from? Or are they actually tuning with WinOLS or map3d?