[sw1tch_nut]

?

 

[skitzo.d]

Removing a CAT in CA?? Are you crazy? What state is your D registered in?

 

[FSTDANGO3]

Agreed and any peformance gained is it at WOT only.
Any codes yet?
Steve
DOC Pres

 

[MAGIC84]

Looks like CA registration, probably plates with the car if he purchased out there, or NON resident Military if he didn't. I'm thinking this won't last long out there without a CAT, the police will eventually notice and give a FIX-IT Ticket. California doesn't need more pollutants. If they don't give a ticket then it might be up for emissions inspection during registration renewal.

 

[sw1tch_nut]

It's perfectly legal right now. And by the time I do my dual exhaust, it'll be Missouri registered and most likely back in Missouri where they don't really care about that stuff.

 

[MWeed]

I know that they (your state) doesn't, but we all should. That stuff was really put there to help keep us alive. The pollution output of a non cat engine is immense and contributes to the chemicals in the air that are killing each and every one of us. We should all be doing our part to improve the air wherever we're living so that our children and grandchildren don't have to wear gas masks to exist? beside the damage we're doing to ourselves medically.

The cat on a D doesn't provide enough resistance to lower performance enough to cut it out. If it goes bad, replace it and keep the D running clean for everyone's sake. Whether your state gives a stink or not.

I know money is tight for all of our service men, but this shouldn't be an option. Sorry Switch, I can't agree with your move on this one.

 

[MAGIC84]

Switch, Semper Fi and all that, and I respect you as a Marine, but I'm going to have to go with Mike on this one. The performance gained for all the extra pollutants into the atmosphere, especially in SOCAL, isn't worth it in my opinion. I wouldn't go so far as to call myself a tree hugger, but I try not to encourage pollution and think that you're creating unnecessary direct pollution not to mention that you could be doing further damage to the emissions system that may not be covered under warranty. If nothing else, think of your family breathing all that junk in. I strongly recommend you put the exhaust system back on and go with a good Flowmaster or Dynamax system.

FYI, Missouri does have emissions inspections at least in metro areas and counties surrounding the metro areas like St Louis, Kansas City, etc.

 

[sw1tch_nut]

I haven't removed ANYTHING to do with emissions as of yet. The muffler has nothing to do with emissions, only noise control. It MUFFLES the sound.

Also, the idea behind removing that third cat is to open it up for a true dual setup, which would include replacing the remaining 2 cats with high flow, yet better (filtering) cats. The Durango (or at least mine) has 3 cats on it which, in my!!OPINION!!, is a bit overkill when 2 good ones would work better.

And FYI, this thread is done. I'm not having the best day and I don't feel like sitting here arguing over something retarded. The truck is legal, there was no emissions systems messed with, and all 3 cats are still on it as you should have seen in the pics.

 

[IndyDurango]

Woah there. Easy fella.

What pix BTW?? If they were in the first post that has been removed now? :naughty:
No need to do that. Destroys the integrity of the thread and all. Old posts here always stand the test of time and signal others with the same issue later when they come across them when looking for a related issue of their own.

I think you can tell from above? no one here's a fan of removing the cat. In reality, the stock Dodge cat flows exceptionally well. I'd never remove it unless I caught a rock and physically damaged it. All reports of clogged cats, burned up cats, etc. are BS. Dodge did a very good job with the CATs on the Gen 1 Durango.

As for the mufflers? THEY SUCK! Gen 1 mufflers are oversized and restrictive. Replace ASAP IMHO. Gen 2s had junk mufflers too but they have it even worse? they have a resonator as well. Replace them both and ASAP IMHO LOL.

With all that said, I hope it's okay for your switch. Keep your head down and your powder dry.

IndyDurango

 

[Connman]

Dang, where did all these tree-huggers come from? :cheesy:
I guess we all better trade in these dinosaurs for a shiny new Prius to reduce our carbon footprint.
Al Gore rules! PLEASE tell me how to live my life, or at least make me feel guilty!! Obama in 2012!!
:lol: :lol: :lol:
(Hey what can I say, I like supporting the underdog)

 

[skitzo.d]

I wish I could remove my cat and put in true duals, but CT doesn't allow me to move or modify the location or quantity of cats.

 

[MWeed]

I'm not sure that it's legal in any state to do that. It's just some never check, so you can get away with it. Unless you're racing, and looking for that last tenth of a second or so, it really makes no sense to pull one out. Look at all of the hp we're now making with all of the smog controls in place, compared to before. We're making much more hp per cubic inch in comparison.

 

[IndyDurango]

I'm not sure that it's legal in any state to do that.

I believe it's not until you reach 100,000+ miles. Fed Regs.

IndyD

 

[MWeed]

Only to replace, not remove, and then in some states you need to have a mechanical reason to get it changed. If your vehicle requires it for smog laws, it must continue to have it unless the part is physically not available from anywhere. That's another kettle of fish entirely paperwork wise in Cali. You'd then have to wait for the vehicle to be over 25 years old so that there's no further testing required.

 

[Neil]

I wish I could remove my cat and put in true duals, but CT doesn't allow me to move or modify the location or quantity of cats.

Do they actually verify the configuration? In NJ at the state run stations, the do look under the vehicle for something that "looks" like a cat but they don't do any verification of what's supposed to be there.

 

[MWeed]

How the rules are enforced is strictly up to the state involved. I remember back in the 60's hearing NJ drivers complain because the state inspection made them use factory mufflers and factory mirrors (as 2 examples) to get their vans passed. Over the years the rules changed.

In Skitzo's case, I'd think trying to figure out how to make the computer work with all the extra cats needed for a true dual exhaust system would be impossible for our computer. He'd have to go to an aftermarket unit of some sort with a lot of testing and programming involved to make it work right. It'd probably work better than the stock system, but?

 

[Neil]

There are a lot of folk with true dual systems and dual cats. I don't know exactly what their O2 configuration is, but computer difficulties haven't been in their posts.

 

[Ironworker711]

They can used something like this so they won't have any problems!

 

[MWeed]

That'll work, but it defeats the computer's reason for being as it eliminates the fuel mixture control for the computer as it operates under false information at all times.

 

[Thebugman]

I know that they (your state) doesn't, but we all should. That stuff was really put there to help keep us alive. The pollution output of a non cat engine is immense and contributes to the chemicals in the air that are killing each and every one of us. We should all be doing our part to improve the air wherever we're living so that our children and grandchildren don't have to wear gas masks to exist? beside the damage we're doing to ourselves medically.

The cat on a D doesn't provide enough resistance to lower performance enough to cut it out. If it goes bad, replace it and keep the D running clean for everyone's sake. Whether your state gives a stink or not.

I know money is tight for all of our service men, but this shouldn't be an option. Sorry Switch, I can't agree with your move on this one.

Mike, with all due respect here, chill out. If cat back systems harmed our trucks in any way, they wouldn't be allowed. We're NOT going to kill our children and grandchildren by changing a muffler or removing one of MANY UNNECESSARY cats. I agree with Indy that the mufflers suck. Heck, as for that muffler, take it off, cut it in half, put legs under it, and you'll have a nice BBQ grill. IMO that's all that that muffler is good for.

Actually if you used a cat back system you could possibly make the D a little more efficient. I don't need Uncle Barrack to tell me how to live my life. And I also don't need a bankrupt state of environmental greenie wienies to dictate to the rest of us how to live.