Does anyone know of any negative side effects from reducing the muffler and tailpipe size from 3.5 in down to 3 in. On a 6.0 gm. I'm considering a different Muffler and tailpipe. From the muffler Inlet back to the bumper it would be 3in rather than 3.5. I have started communication with another member who has done this, just wondering if anyone else has experience with this. I have heard mixed reviews that this could reduce low end torque or create flat spots in the powerband under acceleration