Dual Exhaust, side exit
I have duals on both of my vans that exit out the side. My '71 has true duals. I bought a conversion kit from JC Whitney, and installed it without any problems. The only down side is the front section was 2" pipe to connect to 318 manifolds, the rear pipe is 2-1/4". Later I changed to a 360 engine, with 360 manifolds and upgraded the front part of the system to 2-1/4", included a X-pipe crossover to broaden the powerband. (It's just behind the transmission mount.) :rck:
My '78 has dual 2" tailpipes, that are replacement parts and clear a 35 gal. gas tank. Since it has a cat. con., the front section is 2" merged into 2-1/2" single pipe to the cat con, muffler, then split to the dual tailpipes.
--B-300--