Recently my 2016 R has developed an intermittent issue. During hard acceleration, onto the highway for instance, the revs climb steadily to 4500 then suddenly jump to 5000 and then back to 4500 before resuming a normal climb. I'm not lifting the throttle. There is no CEL. It doesn't happen all the time. I'm running Unitrionic Stage 1+ with a 034 intake and upgraded boost pipes. Thinking boost leak at the DV. Anyone seen this behavior before?