Does a Chrysler 300S have a cold air intake?
K&N Chrysler 300S cold air intakes are easy to install and add power & acceleration while protecting the vehicle's engine. via
How can I get more horsepower out of my Chrysler 300? (video)
https://www.youtube.com/watch?v=aoogwD3H6r4
Do cold air intakes hurt your car? (video)
https://www.youtube.com/watch?v=zofnaV5Bi_Q
Do you need tune after cold air intake?
If you're looking to add a cold air intake and tune on your car, the answer is no. You do not need a tune after installing a cold air intake. A cold air intake will give you more horsepower and torque off the line if installed correctly with an exhaust system that has been tuned for it. via