I'm a little new at this do it yourself stuff and not very savy yet. My question if someone will help me is... I am going to run true duals and I wanted to know if I can/should run two single in/out mufflers or one dual in/out?

 

Welcome to the forums!

First, I'd just like to comment that its not true duals unless you have two single in/out mufflers and no catalytic converters or two single in/out catalytic converters. The pipes cannot connect at all for you to have "true duals".

That being said, unless you plan on major modifications later down the road (cam, supercharger, and/or so on), I'd just do a cat-back, or a high-flow converter and a cat-back, with single or dual pipes out of the muffler of your choice.

 

Honestly, I think it's redundant to run one muffler on a true dual system. I suppose the only advantage of running one muffler on a true dual is that it acts somewhat as an "h-pipe" or "x-pipe" in itself. But, if your spending the extra money to run separate pipes from the manifolds, it would make sense to follow that theme by doing everything in twos. It's also going to depend on what muffler you want. Obviously some mufflers are smaller or larger than others, so you'll have to see what you can fit without it hanging below your frame. Some good true dual mufflers that my brother has run on his system are the cherry bomb extremes and dynomax bullets. The flowmaster 10 series would be similar in size as well. These mufflers are pretty small in size, and fit nicely side by side underneath the truck. I remember at one point he ran two flowmaster super 44 mufflers, and I didn't care for the sound of setup. The muffler had to be run on their sides next to each other to fit, and they hung a little bit below the frame of his truck. Then to boot, the sound just wasn't that loud. If your doing a true dual because you think it's going to be louder; think again. A true dual can be just as loud or quiet as a single muffler system. It all depends on what muffler you choose, and what size piping your running.

 

Please refer to my first post. It is not true duals if you have anything other than two separate pipes. If they connect at all, X pipe style, two in/out muffler, or otherwise, it cannot be considered true duals. The "duals" part does not refer to the number of mufflers, it refers to the number of pipes. And the "true" part does not refer to two pipes, it refers to two separate pipes as opposed to the standard cat-back duals, muffler-back duals, X pipes, and so on.

Not saying you should go true duals or not, just defining the term.

 

In my view; a true dual exhaust system is when the y-pipe is eliminated, and each manifold gets their own exhaust tubing; essentially no longer "sharing" the same piping anymore. It was my impression that regardless if the two separate pipes went into a dual in/dual out muffler, it would still be considered a true dual system. Either way, I think it's stupid to eliminate the y-pipe only for the piping to intersect back into one muffler. If one plans to get rid of their y-pipe for a true dual, they should buy two new catalytic converters, and two new mufflers.

 

Don't confuse a dual exhaust with a true dual. Most ppl just call a true dual system each manifold/header having it's own pipe, but like jason said, the actual meaning of a "true dual" system is each standing 100% alone all the way back. Not to argue, just giving my .02

Now as for my recommendation...I don't really like "true dual" systems, b/c they never give off equal exhaust pulses/notes. I don't really like the looks of running two mufflers under the Dodge, because usually ppl do it by putting them on their sides and then they stick down where you can see them...just my .02 again. I would just run a single 3" in and if you can find it, a dual 3" out. You may have to go 3" in/dual 2.5" out with that set-up.

 

Not to cause a **** storm here, buttt, i thought even with an x- or H pipe. Isnt that needed if your going to run "true" duels? I mean they do it in nascar and stuff. Isnt it needed for backpressure or something?

Again, just voicing a thought. As you said though Jason, your right. Whether you wanna run "true duels" or duels in that setup unless something is major being done to the entire system you wont notice enough of a change ( if any) if your just doing bolt ons. I know once i get to pull my engine and swap blocks for a twin turbo system ill be doin true duels but not until then.

 

well, never mind looked it up lol got bored. Yeah your right. Guess theyre not "true" then heh. But yeah.. still kinda pointless.

 

X pipes and H pipes are used for evening out the exhaust pulses...makes for mo betta performance.

 

ahh knew there was a reason.. thx