When the boost drops car still runs fine, to do the leak test we took filter off and blocked off the hose then plumber a t piece into the vacuum hose going to inlet and used compressor to fill the system. Got up to just over 1bar on boost gauge and leak was significant so i dread to think what it will be like at 2bar.

Mark i dont think a cossie style actuator will fit, im gonna fit standard inlet back on and see what its like.