Agree 100%. I’ve always used the cheaper headers and they fit just fine. My duster came with headers that had a tight fit on a couple of tubes, but I’ve got the spark plug wire insulators over the wires and have had absolutely no issues with spark plug wires being burnt. A discount brand of headers will outflow stock exhaust manifolds all day long. You can also remove the cheap paint that comes on the discount headers and repaint them with a high heat header paint and cycle them a few times to let the paint cure correctly. Just my two cents on this subject.