Performance and MPG muffler?
So, I need a new muffler. Mine has a pretty good hole in it. I'm not really interested in sound, and I will not be putting a complete exhaust system in. What I am wondering, is if there are mufflers that could improve mpg and/or horsepower, without adding a complete exhaust system. I was sort of looking at a 50 series flowmaster, but didn't know if this would be a good choice.
Here is the truck:
2004 Ford Ranger
Any thoughts/ideas are much appreciated.