Quote:
Originally Posted by canucksafari
I suppose that the degree of the bends will also have as much of an influence on air flow as the different length of the tubes, no?
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That would be an issue in a different engine then yours, diesels are a bit different then gassers and little things like a header don't make as much of a difference on them as they do in a gasser - due to different pressures and RPM range. If you look at gas race engines the proper headers have all pipes almost equal length, sometimes they need some more bends to fit them in there but the lengths to where it combines are the same. There it is noticeable, also the engines are balanced, and cranked to the max where every little detail can mean a difference of horse power - here you don't have that issue. IMHO
I went from the factory exhaust (2 1/2 at engine to 2 by the tail pipe), cut it in half and went 3" all the way, I didn't notice any significant difference.
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