[TMAC]

The long tubes are the way to go. But its probably not the first mod you should do. There are better 'bang for the buck' mods to do first.

 

[TMAC]

I'm old school. I always build my hot rods the same way. And that includes headers and large diameter exhaust systems with chambered mufflers. Usually Spintech.

 

[TMAC]

Nothing beats the sound of a chambered muffler. When the Hellcat goes positive pressure, they yell pretty good.
Spintech also has oval exhaust tubing (in stainless if you want it) so your ground clearance is actually better when you switch from the 2.75" round factory pipe to an oval pipe that is the equivalent of a 3.5" round (2.5"X4"). You actually have MORE clearance, and the mufflers come oval in/out as well.

 

[TMAC]

I don't like what an H or an X pipe does to the sound, so I don't use them. When I put the 3" Stainless Works exhaust system on it, I threw the X pipe away and replaced it with 2 separate lengths of stainless 3" pipe.
The OST Dyno Demon Plus cam is going to sound real nice. Keeping the sides separate makes the choppy sound more pronounced. Besides, there is ZERO power benefit to an H or X pipe in a supercharged setup.

 

[TMAC]

Yes. I have the 2" headers and full 3" exhaust. I replaced the mid mufflers with Spintech 3000 XLP's.

 

[TMAC]

I don't, and the car is currently in the shop getting a ton of mods.
Once its done I will be going to several weekly car shows on Fridays & Saturdays. Meeting up isn't a problem.

 

[TMAC]

The only negative is the cost vs return when done before any other mods. When I did it to my car, I didn't even get it tuned. Eventually, it did trip the CEL.
Headers and the associated larger exhaust system are not a cheap upgrade, and there are many things you can do to increase power (for way less money) before you really need to make that step up.
I did them early because I also like the sound, and knew I would be doing mods later that would take advantage of the freer flowing exhaust.

 

[TMAC]

Full length headers are $1500-2000 without labor.

That's just for the headers. If you want the full 3" exhaust system, its considerably more.