The manifolds are sized for 2" pipe, it then expands to 2-1/4", I assume it would be 2-1/4 the rest of the way. I want to replace both sides. At this point the mufflers are under the cab, I'm pretty sure that the original single exhaust placed the muffler under the box and that is what I plan to re-create with 2 mufflers.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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