Curious, why would the engine (seem to) cut-out very briefly (as thought the DSC was kicking in) at 5,000 RPMS (4th gear) on a straight dry clean (no pebbles) road, at a tad over 100 MPH, with even and smooth acceleration? Did it twice today at different locations, same exact conditions. After 5K RPMs its without drama to 6ish. Seems strange. Car has 16K on the clock ('03). Sport - on, DSC on. Opinions?