My exhaust is over the d-shaft and I need to move it to where yours is routed. Mine rubs the shaft sometimes, just not enough room. Can you snap a pic of the exhaust next to the duals, mine also is way to close to the cases. But with 2 cats and a Borla turbo muffler mine is super quiet at idle and has a good tone all the way through the revs.
I will get more pics when it goes up on the lift again. Right now im running the stock taco cat next to the duals and a small section of pipe to an 18inch borla bullet style muffler then it bends and goes under the shaft then out to another small 8-10inch muffler and then the normal borla muffler. Mines deep at idle and a bit louder then i was after at first but it sounds good. And when its reved it sounds good so im going to rock it a while. I think it will sound pretty good and be quiet enough to not be annoying inside or outside.