Im building up a 250 I6. 1" pipe seems small considering that i have 2" pipe stock, or does being a header make up for the lack of flow so a bigger pipe isnt necessary. build it like a regular header then, 123/456. I have thought of running 3 pipes to either side of the car (so a pipe per cylinder) for a cool look but 6 mufflers seems pricy unless i just go dual and custom up fancy tail pipes. I will need to run a cat and muffler so u sure 1" pipe will be fine?
