Dennis M, I have a 2 in 2 out muffler on my '32 bolt. I made it myself when I worked at a muffler shop many years ago. Jaguars had a similar muffler on the 6 cyl. cars, also I have seen a 2 in 2 out muffler advertised in some of the street rod magazines. It makes a unique sound still the split 6 rap but subdued. I think mine sounds great.