hey guys, just leased a mazda 3 hatchback gt automatic, just curious what are some good upgrades i can do to a lease as for as performance goes that wont void anything i personally was thinking cold air intake, cat back exhaust, and header ? would that void? and what product recommendations for those parts. I called up aem they said they did not try there cai on the 2007 engines yet but i am pretty sure they are the same as 06.
Last edited: