Stainless b pipe?

The muffler on my '97 Civic EX coupe seems to have gone south, at 122k
miles (this is the original). I believe the B pipe will need to be
replaced at the same time.

Because of the warranty, I'd like to get the OEM muffler from a dealer.
However, the B pipe doesn't carry the same generous warranty. I was
curious if anyone manufactures an aftermarket stainless B pipe that is a
direct replacement. The only ones I've been able to locate thus far
come as part of an exhaust kit.

thanks
-patrick