Locking Nut & Bolt Kit For Exhaust Collector Flange

Are you tired of your muffler loosening up while driving?  It's super common for the bolts to come loose, causing exhaust leaks, or even worse: your muffler flops around and gets damaged before you get home.  This is a simple solution.  This kit comes 3 with M8 x 22mm bolts and "top lock" nuts, which have distorted threads that really stay in place when installed.  Use them on your three-bolt flange where your header connects to your muffler.  They are a one-time-only us. Don't re-use them when it's time to change your muffler. You'll really appreciate how well they work, but you'll hate installing them, as it feels kind of like threading a metric onto a standard bolt.