What is the advantage of running your 2 exhaust pipes from the header into 1 pipe?
Quiter? Cheaper?
I know alot of newer manufacturers take 2 into the catylitic converter, and 1 or 2 out. This generates more heat and aids the converter in doing its job more efficiently, but this doesn't apply to old trucks.
Oh yeah... 302 gmc 6 with fenton dual exhaust in 1940 gmc 3/4 ton.
