I have an esc cos stage 3 with an uprated actuator.I've noticed boost is not being held very well.As i 'm aware there are no leaks etc and the car goes well but the needle drops of too much whilest under full boost.Not 100% sure what actuator i have but you can unbolt the front to replace the spring i've been told.So where can i buy one and approx how much please??

 

just replace the whole actuator... commonly refered to as -31 and -34

www.motorsport-developments.co.uk will sort you out.

infact most tuning companies over here (and probably over there!) can sort you out

 

STU @ MSD sorted me in like 3 or 4 days and I'm in Poland - half of the parcels gets lost the other half goes for months so it was really impressive Stu is the man to go to

 

Ian Howles of RaceteK can get you one 01594 823407

Si