I recently purchased a 2005 F-150 XLT 5.4L V-8, On a prevuious vehicle I had true dual, 40 series Flowmasters.

-Any suggestions on exhausts that compliment this engine the best? I'm looking for a good deep sounding exhaust that also will add horsepower.

Any ideas are great.....thanks

 

The Magnaflow exhaust is known for having a nice deep tone.

 

ran flowmaster all of my young life. i find myself not wanting to make so much noise now but still want the power. Personally i like Gibson exhaust. Their claim is "we make power without making noise" . Try Gibson.

Here is a link that allows you to hear the different exhausts on your truck before you buy it...Nice!
Gibson Exhaust Systems - Mufflers, Headers, Tips, Metal Mulisha Exhaust Systems for Trucks, SUVs, Jeeps, Muscle Cars