Here's an update since the install about the two problems I've had so far:
The first problem was that 2 of the 3 electrical male spade connectors snapped off most likely from enbrittlement. They arrived bent, I straightened them, they got bent during painting, then straightened, and bent again during install. I made new metal strips to replace them and the nylon hex bolts they're molded into cracked open at the seams when replacing them so I packed them full of glue and reinstalled rather then spend $26 apiece for new ones. The new homemade ones work great so far.
The second problem didn't reveal itself until I installed the turbo but I found the road draft tube rubbing on the hood cross member. Other members have mentioned seeing this issue so I was suspicious and now I'm seeing what they were seeing. I clearanced the front-most flange of that cross member to clear.
Now on the functional side these jake brakes are bad ass! They work great and I want to use them all the time. Now with the turbo & 5" exhaust they sound amazing and have a huge bark
I think I should head up to snob hill at 3am to let others enjoy the magnificent sound...!