Review on 🏎️ K&N Cold Air Intake Kit: Boost Horsepower with The Ultimate Performance Upgrade - 50-State Legal for 2005-2015 Dodge/Chrysler V8 Models (Challenger, Charger, Magnum, 300C), Part #57-1542 by Adam Bates

It took the local speed shop about an hour to install cold air. The first thing that struck me was how well it fits my 2018 Chrysler 300C Hemi. The second and best part was hearing the fantastic difference in my engine sound when accelerating. From the first pull I felt an increase in acceleration. Will be reinstalled. I haven't been able to compare performance data yet, but without a doubt. It's definitely faster. I'll compare the mileage after the next fill up. Used a different brand on a previous car. From the growl under the hood. K&N improves the airflow to my engine better than the other brand, which had the same acceleration noise as my stock airbox with no improvement in horsepower or mileage. I am very satisfied and recommend K&N cold air systems on your 5.7 Hemi or any other engine you want to upgrade.