PLEASE USE HEADPHONES AND NOT A PHONE SPEAKER!
The double x pipe was great but it seemed to amplify the metallic raspy "clap" I was experiencing as well as some other higher frequencies. These high frequencies seemed to pass straight through my resonator. Im not sure if it is designed to dampen those frequencies or not. Before adding another resonator or getting a muffler, I want to get rid of some of these frequencies so that the resonator can do its job better.
I also wanted to move the mid pipe as close to the engine as possible and ARH makes a x pipe that crosses over right after the trans mount. The stainless works header connection pipes traveled even further back than the stock band clamp location before crossing over. This made me wonder of this was adding to the exhaust "clap" I was experiencing. So I picked up a used ARH X pipe off FB marketplace and used my H pipe I had laying around to attach this to my axle back. The results were pretty good. Clap is almost gone but still slightly there but the rest could be fixed by another small resonator. I honestly might just replace the Corsa with something bigger instead of adding another resonator. Maybe a bigger Borla resonator.
(I know this cars firing order make it just naturally clap a bit)
Yes it is still "race car loud," and the drone makes my passengers nauseous (I don't mind drone though). Some people hear the loudness and automatically have a negative opinion, that's OK it's not for everyone. If you want a mild this setup is definitely not for you. Even if your area isn't strict with loud cars, you might get pulled over still. The "quiet car purists" are usually loudest ones in the comment section about this topic :/

It's OK EPA, the cats went on right after this video was made.😉

Full Setup
-Stainless Works Longtube Headers (2 Inch Primaries)
-ARH X Pipe
-AWE Tuning H Pipe
-Corsa Pro 10in Resonators
-Corsa Track 3 Inch Axle Back
-Longer tips (for depth)

LOUDNESS LEVEL
Interior - 8.5/10
Exterior - 9.5/10
This is different for everyone. It is deeper than the double x on the outside so it doesn't hurt your ears as much, but it still just as loud on the dB meter.

Audio wise, I used my Samsung Galaxy S21 ultra which has a tinny microphone so I lowered some of those frequencies and my Gopro mic which only records mids and not highs and lows so I had to boost those frequencies.

Probably going to remake a video of this setup once it gets warmer.

Mods
-Airaid cold air intake
-Exedy clutch
-Exedy lightweight flywheel
-Tuned by vmp
-Full Exhaust

BEST SOUNDING HIGH FLOW CAT SETUP (If your state needs cats or you just want to run them.)
   • Mustang GT 5.0 BEST SOUNDING CATTED E...  

BEST SOUNDING STOCK CATS SETUP (If you don't want to touch the headers at all)(2 options)
   • Mustang GT 5.0 CORSA TRACK with Doubl...   =High rpm screamer
   • Mustang GT -3in H PIPE + 3in CORSA TR...   =Deep old-school muscle


2015 Mustang GT 5.0
Manual
Filmed on a trip to Mexico and the rest is unreal engine 6.
And yes, I drive it all year round. Rain or snow.