So I ended up getting it into a local mechanic that was recommended to me. It ended up costing about $300 with tax etc. They told me that it would be about a 2-hour job, then added 30 min to let the exhaust cool before getting started. All said and done I was hanging around the shop for about 7 hours! That I was not happy about, but at least they didn't change the charge on me. They did have to unbolt the cross member to get the old downpipe out (it's all one piece). Other than that, it was a pretty straightforward bolt-on. They didn't know the torque specs either and SPD has still yet to reply to me, but they made sure to get them tight in there. At first, there was very little difference in idle volume. Turbo sound has significantly increased, which I like, when you get in the throttle now you can actually hear them spooling up. Cold starts have started to have some more volume to them, it seems like once it warms up, it still sounds quiet at idle, I was definitely hoping for more exhaust volume, but it is what it is, it can be heard in the cabin more now than before for sure. As far as performance goes, I'm still experimenting with it. I had some issues with the initial tune which was the performance tune (I have been randomly getting a charging system error after installing a new tune), I re-tuned with the stock tune and then a daily / tow tune. I've noticed less turbo lag, but it is also noticeably slower than with the performance tune installed. I will re-flash with performance and then go back to 5-Star with some feedback to get it dialed in. Overall I'm very happy with the truck though, intake, intercooler, and downpipes, she's fast, sounds pretty good, and hauls everything I need!