Ok, I did a search and am still confused. I removed the insert that goes on the exhaust end cap. 4 bolts no problem. Looking inside I can see the large wall with a couple of small pipes coming out of it. This is what I would consider the real baffle. Who has removed or modified this? Does anyone have instructions on what and how they modified it? What were the power gains? Can this be modified and somehow stay under 96db?