Nice truck. I personally like the Borla S type great sounding not load in the can very clean! Also of you piped out all the way back its going to sound cleaner
Sound is totally subjective. Had Flowmaster American Thunder on a Mustang and a Bronco in the 90s. Had the same on an 07 Mustang. Currently have a Magnaflow on an 03 Ranger with the FlexFuel 3.0. Planning a 302 swap, supercharged with Flowmasters. I think Flowmaster sounds the best overall and definitely sounded best on your truck.
One thing I can think of is your pipe diameter. 3 inch is more mellow and less raspy than a 2.5" also for as quiet as your looking for a straight through muffler like most of the ones you tried are not going to work. I have a chambered flowmaster on my 5.3 swapped blazer and it's nice sounding at idle and normal driving. But once you get spirited with the pedal it gets louder.
Going with a 3" exhaust did cross my mind. I figured if the Mustang comes factory with 2.5", that would work for me. Plus 2.5" is good size for that HP level. The Magnaflow XL's i originally had on the truck are Chambered mufflers and when I tried them, they were slightly louder than the Flowmaster Flow FX. Trial and Error I guess. :) Thanks for watching.
spintech 6000 series or the 9000xl series are said to sound similarly and I got some for my benz but have yet to install. cherrybomb vortec sounded good on my 04 silverado 4.8. Hooker aero chamber sounded alright on my 350tbi 2door tahoe. I ended up getting an 09 silverado and put blackwidow 250 and are pretty decent sounding for my 4.8l. All dual mufflers. I wanted to have it idle nice and mellow but have a nice loud roar when I floored them. All x pipes except 09 with Borla SwitchFire Resonator Delete X-Pipe for a mustang (it fit like a glove). I looked at some gibson MWA there are two versions but those go in the loud direction but do sound really, distinct. I'd get away from the flowmasters. that's such an old-man-90's thing now. same with hooker but, the aerochamber is a fun design. If you enjoyed the xpipe more than the hpipe, check out the above models. They all kind of have similar designs in mind and I think you'll see what I'm talking about. thank you for the video. I don't even like fords but it's fun anyways.
That's a lot of mufflers for me to check out. :) I appreciate the info. Once I recover from this round of testing, I may have to revisit it down the road. Thanks for watching.
Try the FLOWMONSTER straight through oval mufflers they are inexpensive and really quieted my car down significantly give them a try good luck and make a video
