I want to preferrably put a stock style single inlet/dual outlet muffler on my 79 Hurst Olds but I can't find this muffler anywhere. The closest I came was one from a F-Body from the same year range but it wasnt the right size or configuation I needed. I know the Walker part number is 22143 and the IMCO/OR?Maremount number is OR2595, but I've had no luck finding them. Does anyone have an idea of where I can find these mufflers, or even a NOS GM muffler? If not, I don't mind going with a more agressive muffler as long as it sounds good and allows me to mount it in the stock location and use the factory style tailpipes I have.....does anyone know of an aftermarket performance muffler that would fit like stock?