Gurus,
I have a 2005 Ultra Classic with Rinehart True Duals.
The part number for the system is HD 1800-0242
The right side muffler number is R5-0029C-04-08
The left side muffler number is R5-0028C-08-08
Why are there different numbers on the mufflers?
Could it be for the screw arrangement for the end caps?
What baffles come with this system? It has gotten louder.
How do metal baffles burn out? Is there any fiberglass to blow out?

Another question about exhaust systems.
My 2005 Ultra Classic has the 95" kit, 203 cams, stage 1 air filter kit, SERT, & Rinehart True Duals.
I am thinking about going with a 2 into 1 system.
Is there a 2 into 1 exhaust that would be best for my combination?
Thanks,
magnoliarunner