Cheapest place I've found the OEM parts is partsouq.com. All oem stuff. Two knock sensors, harness, and the two lower intake manifold gaskets for 287 shipped and will be here Monday. I'm going to be replacing all the oem stuff after getting a driverside sensor that was stuck on and also adding a standalone knock sensor that's ran off my piggyback so I can actually see the knock count and not just trust the oem ones that are notoriously issue prone with boost.

Hoping with this setup I'll be able to have knock control below 3k rpm and then from 3k up just let the oem stuff do it's thing and monitor to make sure it's all working properly.

In my case when the sensor failed it failed a long time before I got the code. Progressively throughout the day it felt like my low rpm power was going away and the truck really was falling in it's face in boost. Got to the point where I thought I'd melted a plug or something because I couldn't get over 40mph and the truck would slow down if it got into boost. P0330 finally came in and I didn't even bother checking to see if it was intermittent before parking it to take it apart.