Header question-tried search

I’ve been searching, but have had no luck, is someone can point me in the right direction it would be greatly appreciated.
I have a 90 GS, I JUST bought a header for my car (off ebay, I know it’s not the best). It’s a megan, I got it for like $50, my original was damaged anyways. So, the fitment wasn’t perfect, but it fits and everything bolted up fine. Well, I had it about a week, when I was on my way home from Thanksgiving break and BAM, a bump in the road. So now I have a dented B pipe on the header. The car still runs great, still pulls hard, still hauls ass, but what do I do about this big ass dent? Can a muffler shop fix this? Any suggestions or past experience?
Thanks
Vic
integraduo@sbcglobal.net

If they can’t fix it, they should at least be able to weld in a new section of pipe…