Vader 150 silencer tip blew out of $36 exhaust.

[ProDigit]

I've got this $36 exhaust on amazon (now $37 add tax):
https://www.amazon.com/dp/B08YF9Q4TK

This exhaust shows up for anything up to a 250-300cc.

The Vader 150 only has a 138cc engine from what I gathered (maybe I'm wrong).
Just recently I found the carburetor jetting sweet spot in my area, and took it out for a ride, but the silencer tip blew out.

The silencer tip is attached with a single screw, which was loctited.
From the remnants, it looks like the metal sheered off at the mounting bolt, and once the allen lost grip, the silencer rocketed out.
Thankfully I've only had the exhaust for 27 days so it'll be an Amazon return. The muffler is good, so I'll keep it, and return the new one, only to be fair to the seller.

I either will have to find a way to make the bike quieter with another slipon, or modify the current slipon to handle the extra power.

Any ideas?