I want to replace my stock mufflers and get it the loudest as possible. What mufflers would be best?

 

Thought so far are Flowmaster super 10 and SLP Loudmouth 1

 

SLP's are known for being loud, though they're bad for drone at highway speeds. I've got Flowmasters, and as long as you're not spending a lot of time in 4th chugging up and around mountains, you'll like the sound. They're reasonably not obnoxious normally, but when you step on the go-pedal, they'll be heard for miles.

 

Thanks Stangmahn, I'm 17 and just trying to get it as loud as possible

 

I have had 2 stangs and just removing the stock exhaust and leaving the stock mide pipe on these are not that loud with no exhaust at all. It has 4 converters on the mid pipe which makes these quiet as well. If you want loud dont expect the mufflers to do the trick. Remove the 2 rears converters with MIL eliminators or just spend $150.00 for a o/r H pipe. Mid pipe is where its at to get it loud.