You can use the Curt trailer wiring harness # C56145 as much or as little as you want. If you do not use it very often though you will want to make sure that you use dielectric grease between electrical connections (# 11755), and make sure the ground is attached to a clean and corrosion free bare metal surface. Also make sure the cover is placed on the 4-Way end when not in use. view full answer...
The MagnaFlow exhaust system # MF15119 for your 2014 Chrysler 300S V6 does not restrict exhaust flow. If you used the same configuration with the stock exhaust parts on the vehicle then that would restrict it some. But the MagnaFlow mufflers have no baffles, chambers or louvers and the pipes maintain the same diameter in the bends allowing the exhaust to flow more freely through the system. view full answer...