The dealer is going to do the vent tube TSB for me on my differential. I was reading the TSB and it's pretty in-depth to replace this tube. I have a question for you guys. I have the aftermarket exhaust and high flow cat... The TSB says they must loosen and drop the exhaust, then loosen and drop the differential. Do I trust that them to do this to my baby????? I'm a little concerned because of the solo exhaust...that's all..... What are your thoughts?