yep, fit a restricotr in line (or snubber), basically will limit the voume (not pressure) of air that will affect the gauge, it has the effect of damping out he pulses caused from the 4 cylinders drawing in air as each set of inlet valves opens, and when revving on boost can cause quite a rattle,


i used a glycerine filled gauge to dampen the effects, but since gettingmy new 2 bar boost gauge dial kit from speedy in my escos , once i'm happy that it is arrucate enough ill take my aftermarket gauge out.