I recently bought a 04 f150 with a 4.6. I'm very interested in putting dual exhaust on it but not sure what type of muffler I want to use. I've used flowmaster in the past. I'm looking for something with a deep tone but not too overpowering inside the cab. Any suggestions?
Brian

 

If you like the sound of the flowmaster 40, try the super 40 or delta flow 40. Same type sound, but very little interior.