How do you add additional HP to a 2009 Mazda 3 1.6V?

Martin O

New member
Hi, I just purchased a new Mazda 3 1.6V. I was hoping to add a little HP without it eating too much fuel & possibly lose the warranty.

I know the 2.0 is better, but this is what i can afford. I simply want to make most of it.
 
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