Hi guys I'm a newbie here, and don't know a ton about cars but I picked up an old girl here 2004 ford f150 5.4 litre 300 000kms runs like a dream .I had a few questions so please bare with me if I get lost on some of the automobile jargon. I find the truck is abit loud no leaks or anything under the truck the only thing I see is an older muffler and broken exhaust tip would that be causing the loudness. And what would u guys recommend as a muffler that still sounds good but not super loud I can post pics of underneath I'm just wondering what u guys would suggest everything I believe is factory so don't know what size muffler or anything so some help would be nice.but I will attach pics.