2010 screw FX4 5.4L. Putting on side exit exhaust in front of rear tire at a custom muffler shop Saturday. They sell Magnaflow and Flowmaster. $365 for dual out the side or $25 more for dual out the back but def wanting side exit because i want something unique. I keep going back and forth between the two with so few examples of this set up out there. Any opinions? Magnaflow will be quieter I hear. I want a deep solid sound. Thanks

 

Magnaflow. What size muffler you plan on getting? I would not even consider buying and installing a flowmaster muffler on my truck, to me they don't sound good at all and they don't flow worth a crap. I've got magnaflow on my truck and very happy with it.

 

I have a 2012 with the 5.0 and magnaflow turn downs. I like the sound as it is a low rumble on start up and idle and really opens up on WOT. It doesn't have a lot of the drone when driving normally. I went with magnaflow because I didn't want the constant drone. Flows will be louder but the drone at highway speeds will get old quick. Just my 2 cents.