It’s the wrong part ,
I ordered a aluminum part and when it showed up it’s steel

For those many enthusiasts who have come to rely on our specialty Garage parts diesel components here they are. Built from a 16 gauge aluminized steel they are fully coated; including the seams; for an exhaust system that you can count on to last. Weld on the hangers as your wish and you are ready to go.
Our most value-oriented material, this tough mild steel is a great option for dry climates with no rain or salt. If you’re wanting an exhaust option that doesn’t break the bank this is it.