I just recently inherited a 2010 Mazda 3 as my new vehicle. I want to know what possible upgrades I can make on it. Any info would be nice. Especially more MPGs would be cool if possible. I don't have a crazy amount of money to spend so the cheaper the better, but I can always save.

Thanks,
-Eric

 

Leave it stock for the MPGs. Power takes fuel........or money.......or both LOL What are you running now for MPG and what do you want for MPG? Have any specs for your car (engine, trans etc)?

 

This looks reasonable. For 2.5 L. Looks like some under hood isolation as heat is the enemy, especially if heat from rad fan can get at it, you may have to modify for a tight seal from under hood where tube goes through. Heat = lousy throttle response, pick up power.
Part 69-6013TTK, Estimated Horsepower Gain: 6.67 HP @ 5604 RPM

DYNO: http://www.knfilters.com/dynocharts/69-6013_dyno.pdf
Product Page: 69-6013TTK - K&N 69 Series Typhoon Kits, Performance Intake Kit direct from K&N

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Based on engine size!? Gains will be minimal, more so for sound.

Don't waste your money on Hypertech, gains for Mazdaspeed are only 10 HP.

 

Buy a sports car. It's a Mazda 3 not a Mustang lol