It depends on what you need. Competition? Big bucks make sense. Just for grins and fun? I don't pretend that these are pro quality but for never having built a set ever......... I bought eight or nine of these. I don't remember. https://www.speedwaymotors.com/Comb...nd-Header-Tubing-Mild-Steel-2-Inch,11308.html I piece of 4 inch from the local parts store for the collector. I was gave the flanges. So I have under $200 in them. Are they perfect equal length? No. They will work.