The two bolts on top of the trans were easy, but yes, i had a good 3-4 feet worth of extensions on there.
No, I did not pull the exhaust. It wasn't even close to needing to be pulled.
How long have you had a stock clutch with your dp tuner? My stock clutch had 30k on it when I got my tuner and it started slipping immediately after I installed the chip. I just didn't know it until it finally totally let go at under 1000 miles with chip. You're going to be surprised at how much faster your truck is with a good clutch.