muffler
Take a look at Magnaflow for a mild tone and Flowmaster for a loud tone. I have the Flowmaster 40 series. Throaty rumble at idle and I can set off car alarms at WOT.
https://www.f150online.com/galleries....cfm?gnum=7238
https://www.f150online.com/galleries....cfm?gnum=7238


