If you plan on running Nitrous/power adder.... or with heavily ported or aftermarket heads the 1 5/8 equal lengths would make more HP.
Long tube headers perform even better than equal lengths do...but to me they are not worth the trouble to install.
Later,
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim.
00' Lightning-Stock
88'CRX-13 second ego killer
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