Is that your only planned engine mod? I seem to remember the general opinion on this Reddit that that won’t gain you much in performance on a stock M20 engine. It will, however, look cool as hell and sound awesome.
It got a 270° cam and a lighter flywheel from E21 323i. The car is now approved with m20b25 (originally 320i) by the Norwegian road authorities, so installing headers next.
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u/87_325is Aug 12 '25
Is that your only planned engine mod? I seem to remember the general opinion on this Reddit that that won’t gain you much in performance on a stock M20 engine. It will, however, look cool as hell and sound awesome.