I just got a new '02 F-150 4.6 and I have no idea which muffler to buy!! I want to do a SI/DO but I don't want it to be to obnoxious. My dad put a flo-pro on his '97 and it sounds good. I just want mine to be alittle louder. I heard dynomax isn't a bad one to get. What do ya'll think?

THANKS!

 

To get alot of sound out with the multi-cat setup, you have to get a very loud muffler IMO. I have the Dynomax Ultraflow; it's one of the louder mufflers available; similar in decibel output to the Flowmaster regular 40. It has a slight rumble at idle, it's about as loud as you could stand on the highway for conversation and music, and it has a very throaty "muscle car" growl under acceleration/load. I've had tons of exhaust upgrades on many vehicles and this one sounds great. I've got many compliments and it is one of the highest flow mufflers available.