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  1. Exhaust "tone" Theory..

    2014-2018 Mazda 3 Skyactiv Engine and Performance
    All, I've been edumacating myself on Exhaust technology, specifically mufflers and the sounds they make. When it comes to our Mazda (and any 4 banger for that matter), most of us want it to sound deep and not ricey. From what I've learned, all mufflers basically do the same thing.. it is HOW...
  2. Turbo Exhaust Theory

    2010-13 Mazdaspeed 3 Engine and Performance
    Came upon this article and thought I'd share, it is a good read. Turbo Exhaust Theory