Hi everyone! I am new to the Avenger Forumz and I just bought a 2013 Dodge Avenger SXT 2.4l with 60,000 miles. I want to upgrade it to add performance not racing. I just change the stock spark plugs for the NGK Iridium ZFRF5IX-11. I could definitely feel a difference in accelerating and the way the car runs. I've looked into getting and K&N CAI 68-Typhoon. What other performance mods do anybody recommend???