I have been looking into upgrading my 2016 mexican 180 duratec to the 210 specification. Apologies if this has been covered before - a search was informative but didn't address this issue so far as I could see. There are a couple of options. As I'm up in Scotland the usual route of going to the two steve's is more difficult... Caterham do the kit for £2300 fitted but I see that my engine already has the upgraded valve springs and blue injectors. Having spoken to our local dealer they have reduced the price as all I need is the cams and reflashed ECU. However, whilst getting my daily driver MOT'd I was speaking to the garage owner who has built several duratecs and he suggested I speak to SBD motorsport. They can provide equivalent cams with vernier pulleys and a new, unlocked ECU with a "210bhp" basemap. It would just require my local garage to fit and time the cams. The advantages of this option seem to be that SBDs basemap is reputedly better than the generic caterham one, it changes the car to throttle position sensor metering which again is reportedly a big improvement in relation to the duratec "lag" and finally allows me to go to my local rolling road to fine tune the map without having to travel to the south of England... The SBD option seems sensible as it's a similar cost - can anyone see any disadvantage with my logic? My engine is not under warranty - so this is not relevant. David.