installed volumizer, afe intake, 4" turbo to tip. boost gauge is reading as high as 40-42. what could be the problem?

 

You need to fill in your profile so we can see what you are running, that way the more info we have the more correct the answer's are. Where did you plumb the gauge in ? What's the boost @ without the volumizer?Do you have a restriction in the exhaust system somewhere ?

 

2003-2004? So or Ho? or 2004.5? boost elbow installed?