the end cap is STUCK on my silencer. anyone know how to get this stupid thing off. ive never had a problem with it, and then it just gets stuck on there?

 

If you dont mind some teeth marks on the end grab hold of her with some pilers.

 

Yep
I got some vise grip marks on mine. I usually grab it with the vice grips and tap the muffler with a rubber mallet while twisting the end cap on/off and or aligning holes. Break-free works good in the nutplates to keep them from seizing up/ease in removing allenheads.