Yes, there is a (very easy to do) exploit on Capitol Reach, possible at any speed (you just need a turbo pickup), which lets you skip the tight, long lefthander turn before the tunnel section entirely by glitching through a wall. I am not going to describe it in detail here because I don't want to promote it - I've seen people using it and found it myself by following them. It's stupid and if I see someone doing it I quit immediately.