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m20b25 e30 resonators

  1. E30 (1982 - 1993)
    Hi guys, It's been a while, so i'll try to make it worthy. Today removed catalytic convertor and replaced it with a pair of resonators. It sounds great, not louder than febore, idles much better, smoother take offs and even smoother rev downs., it also helps quiet rattlening/lightened fly...