Exactly! I didn't know if cutting the pipe where it begins to taper out effects back pressure or performance. The way I have it set up now is the pipe is cut to the point where the circumference matches the circumference of the header and then I cut the header down to the desired length. The...
Is it better to cut pipe the up to the diameter where slides back and forth on the header or should you just cut the header down to meet the inlet on the pipe?
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