I did the DIY intake mod. as directed by The very popular Marty. (man I wish he was my neighbor). VERY satisfied with the noticable difference in both sound and performance. Surprising how much the stock configuration was holding things back. Question is...When I"m on the skinny stick hard, your hear the turbo screaming and when it shifts from 2nd to 3rd and 3rd to OD you hear a very noticable sound that sounds like a air pistol shooting a short burst of air. Am I now hearing the waste gate dumping the additional boost when the revs drop in connection to the up shifting?