I was in the same boat as you a few days ago. My exhaust was stuck in Tour mode and exhaust was coming out both sides. When in Sport most if not all exhaust will go through the driver's side. So it sounds like you are in sport mode. I did notice a performance difference once I replaced the stock system from the rear axle back. When in touring mode all the exhaust goes through a 2" pipe instead of a 3" pipe and the 2" pipe. That restriction I was experiencing was hurting my 1/4 mile times further down the track. My 60' times were ok but once I got to the 1/8 mile I was not where I should have been. Can't wait to hit the drag strip when they open again.
Hope it helps,
Kevin
Hope it helps,
Kevin