I forgot to address the exhaust question, I guess I didn't quite understand your question. If you're talking about the rev's maintaining a high number even when you lift off the gas, that got remedied by bleeding some surplus tranny fluid. It's still not the way I remember (could be my memory) it but it's definitely better than what it was. Exhaust is still loud to me but I'm learning to adjust for the time being.
I got the gas tx last night and pumped up the air pressures. Keeping my fingers crossed.