peak boost problem

[cyman]

did the change happen all of a sudden or a gradual drop in boost?
 
have you done any other mods since mapping exhaust, intercooler or pipework?
 
how old are your tubs? could they be getting a little worn?
 
these are all just ideas I\'m throwing out.
 
matt

due to not doin tht many miles in the car a drop was just noticed about 2 weeks ago and dismissed cos the car was hot at time then did track day on monday where i saw tht it was still there all the time. it wasnt sudden. nothing has been changed since the map. the tubs have only covered around 10k from new they were from turbo technics, i stripped the tubs down at christmas due to non seq issues and they were in perfect condition then and ive done a max of 2k miles this year so far and norm run around on low boost most of the time