I currently have flowmaster dual exhaust on my 2004 v6 mustang, its nothing special, but you can here a little bit of a difference from the stock version. I definitely want to upgrade with louder ones, and I‘ve been researching. I‘m mostly seeing this:mac longtubesx or h pipe?flowmaster 40 seriesis this a good combo? just not sure what is the best to geti don‘t know anything about exhaust systems. any info would be greatly appreciated. thanks!
Flowmaster could provide you the sound you're searching for and this is going to be inexpensive than Borla. you're able to even have an exhaust save fab up a Y-pipe for you after which you're able to be waiting to bolt on a GT exhaust in case you opt for on the twin-exhaust look.
Go with the flowmaster and custom pipeing from the cat. It would sound fierce. Maybe a 3 to 3 1/2 Diameter pipe
Its not easy getting good sound out of a V-6 with out big bucks. You can do anything you like after the cats. X pipe or H pipe do the same thing (create a balance between the exhaust manifolds) but a true dual exhaust would cost you plenty in plumbing work under the car. Unless you opened up the intake and swapped out the stock exhaust manifold for headers you won't be getting anymore sound from the tail pipes. There isn't much exhaust note from the 3.8 V-6 unless you go with straight pipe after the cats. The cats are your biggest power and sound blockers.
