I have a Focus Rs which was damaged and I have now repaired the problem is when I drive it it only seems to be boosting to about half way on the boost guage is this correct? The only reason I ask is my focus st goes to the top of the boost guage when on boost.

 

Your ST has been remapped then? My ST when on a standard map went up to half way, now its been remapped it goes off the end of the gauge