2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums banner

horsepower upgrade

  1. More HP suggestions for an automatic?

    2010-2013 Mazda 3 Engine and Performance
    Hey whats up all, I'm kind of new here and just got my first car a month ago, a 2010 Mazda 3s 2.5L Automatic. I've looking around in different forums for some upgrade and figured this would be the best place to ask. I want to find ways to add more hp to the engine either via thru intake or...
Top