J
My 2021 Pioneer exhaust had a very annoying squeaky/chirp that finally drove me to get serious about finding and fixing. I had previously tightened all the hose clamp fasteners that hold the heat guards in place but that didn’t do the job. Turns out that one of the pipe clamps was the problem. The clamp circled in pic was the culprit. I simply loosened the two 12mm bolts and retighten. No more squeak.