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Alright, I have a 4.6 and I want duals, just not ready to spend much, I just did the rear and front suspensions, ball joints, bushings,etc... so I dont have a lot of money.

I know most people say just remove the third catalytic but I live in NJ so I still wanna pass the emission test. would removing the 3rd cat be still able to pass the test or would i need to add another cat on each dual pipe? something like this?
part# EXH93271 from napaonline.com, link might not work.. sorry

and is this really a dual pipe? #359760
from autozone

i would finish the system with glass packs to give it some sound..


I dont know much about exhausts so any pointers would be good..
 

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Well, if your first 2 cats are still good - you should pass the sniffer test. But with only 2 out of 3 cats, if they do a Visual inspection you will Fail.

When I did Dual exhaust .. years back, I had a Dual in / Out 3rd cat insalled and dual pipes ran back - passed smog here in Cali, both on the test and Visual.
 

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I hollowed out my 3rd cat.

I suppose you could run 4 cats?
 

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Ok, here's my pointer/opinion. If you can't afford to do it right. Don't mess with it. Period.

The link below is the best place to get true dual 2.5" mandrel bent pipes for a MN12 and they're not that expensive.
This exhaust system comes with Magnaflow high-flow cats that should be more than sufficient to get you past emissions testing and also includes an x-pipe. Several of us on here have bought this system.
It's worth what they're asking and it's worth the wait.
If you have to wait to save the money for this system then so be it; don't half-ass your system in the meantime. The only other things you'll need to buy with this system is the mufflers and of course pay someone to put it on the car.

I hope you find this info useful.

http://www.mandrelexhaustsystems.com/servlet/the-Car-Exhaust-cln-92-dsh-97-Ford-Thunderbird/Categories
 

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Ok, here's my pointer/opinion. If you can't afford to do it right. Don't mess with it. Period.

The link below is the best place to get true dual 2.5" mandrel bent pipes for a MN12 and they're not that expensive.
This exhaust system comes with Magnaflow high-flow cats that should be more than sufficient to get you past emissions testing and also includes an x-pipe. Several of us on here have bought this system.
It's worth what they're asking and it's worth the wait.
If you have to wait to save the money for this system then so be it; don't half-ass your system in the meantime. The only other things you'll need to buy with this system is the mufflers and of course pay someone to put it on the car.

I hope you find this info useful.

http://www.mandrelexhaustsystems.com/servlet/the-Car-Exhaust-cln-92-dsh-97-Ford-Thunderbird/Categories
what exactly is the purpose of the X pipe, or H pipe, which would be better for what reason, and what if you simply went dual, with no X or H pipe?

my dads truck is like that, two totally separate exhaust pipes. 7.4L 454.
 

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what exactly is the purpose of the X pipe, or H pipe, which would be better for what reason, and what if you simply went dual, with no X or H pipe?

heard of search?
 

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ya I've heard of search, it also doesn't allow searching of a single character, I.E. X.

also the question is related to the thread, it might be beneficial to have the answer to the question in this thread.


But thank you, your replay has most certainly added to this thread, without it, others may never know the search button exists, I'm glad you were able to bring such top-notch information to this thread.

I didn't see a single thread touching on why X-pipe H-pipe or otherwise is important, so since your such a god with the search button, perhaps you searched before making your smartass remark, to determine weather or not there is a thread which explains the importance of those parts? or maybe you've seen one before which I didn't turn up in a search, in either case your reply was just a means for you to be a smartass, and has contributed nothing.
 

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Discussion Starter #9

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ya I've heard of search, it also doesn't allow searching of a single character, I.E. X.

also the question is related to the thread, it might be beneficial to have the answer to the question in this thread.


But thank you, your replay has most certainly added to this thread, without it, others may never know the search button exists, I'm glad you were able to bring such top-notch information to this thread.

I didn't see a single thread touching on why X-pipe H-pipe or otherwise is important, so since your such a god with the search button, perhaps you searched before making your smartass remark, to determine weather or not there is a thread which explains the importance of those parts? or maybe you've seen one before which I didn't turn up in a search, in either case your reply was just a means for you to be a smartass, and has contributed nothing.
Some people are so quick to get lippy about silly things...

I would have personally tried "H-pipe" or "X-pipe"

H pipes are more for creating low end torque, X pipes are more for creating top end horse power. The exact difference in numbers and why they do this I'm not entirely sure. Sound wise X-pipes make a much smoother hum out of the exhaust and H pipes are more raspy and burbley and accentuate the big cam sound of our motors.
 

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what exactly is the purpose of the X pipe, or H pipe, which would be better for what reason, and what if you simply went dual, with no X or H pipe?

heard of search?
Apparently, you have LOTS of time on your hands!! Ever try searching for something on these forums? Searching usually brings back so many results that it takes FOREVER to go through them all, and half of the results are in no way related to the subject you're searching for! I'm laid-off and out of work right now, and I don't even have time to search these forums for info I need; I find it FAR easier just to ask and take the chance I'm going to get flamed for not having searched the threads first!!

If someone feels that somebody who starts a thread should've searched BEFORE posting and gets irritated by that, then why do you go through the trouble of responding to them?!! Just ignore the thread if it bothers you!

I'm not trying to be a jerk or an a**hole to anyone, but jeez - people just need to chill-out and be polite!

O.K., I've said my peace! Feel free to flame me! :D

Dennis
 

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^^Okay, I'll play the flame game....It's supposed to be "peace", not "piece". As in, I've said my PEACE. :zbash:




















:rofl: :zbeer:
 

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Ok Dennis,

There are other search options besides these forums that return excellent results with the most basic search terms and a little bit of research. My biggest complaint (which Stryker and I share) is that most people are just to damn stupid or to damn lazy to do any research for themselves. Whether it's more likely the latter, the former or a combination of the two is up for discussion.
So many people today expect to be spoon fed the answers to their questions without having to make any effort whatsoever to find the answer(s) themselves.

A simple "H-Pipe X-Pipe" search typed into Google returned the following excellent explanation from Carcraft - read the excerpt below and if it's not to much trouble click the link and read the entire article.

I found this answer in less than two minutes with a minimal amount of effort. If I can do it. So can you, BigJohnny or anyone else!

For any performance exhaust system, some type of crossover connecting the two sides of a dual exhaust system is important because it acts to balance the two banks of the engine. The common H-style crossover is good at balancing sound pulses between the two halves, but does little to promote scavenging because the exhaust gases tend to follow the path of least resistance, which is straight through each pipe rather than taking the 90-degree turn through the H-pipe into the other half of the system. In an X-pipe system, however, where the two sides of the system intersect, the gasses have no choice but to intermingle as they pass through the junction. This promotes improved scavenging effects by smoothing out uneven exhaust pulses from the engine’s firing order. It also helps quiet down the exhaust, resulting in a mellower, less raspy tone. According to Magnaflow, the faster acceleration of the gasses through an X-pipe causes them to flow in a linear fashion parallel to the walls of the tubing rather than tumbling. This “laminar” flowing gas is much quieter than tumbling gas, resulting in an exhaust tone up to 8 decibels quieter than a traditional H-pipe.
 

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Yes, Trunk Monkey, you're right - there ARE other areas in which to search than these forums here. I just never think about them because I can usually find ALL the info I need right here!

But, you are absolutely right!

Dennis
 

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Also, you can use the "site:forums.tccoa.com" operator with your search term(s) in Google to search the site. Much faster, no 20 second wait time, no character limitations, and much more accurate results using the direct quote search method.
 

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Ok Dennis,

There are other search options besides these forums that return excellent results with the most basic search terms and a little bit of research. My biggest complaint (which Stryker and I share) is that most people are just to damn stupid or to damn lazy to do any research for themselves. Whether it's more likely the latter, the former or a combination of the two is up for discussion.
So many people today expect to be spoon fed the answers to their questions without having to make any effort whatsoever to find the answer(s) themselves.

A simple "H-Pipe X-Pipe" search typed into Google returned the following excellent explanation from Carcraft - read the excerpt below and if it's not to much trouble click the link and read the entire article.

I found this answer in less than two minutes with a minimal amount of effort. If I can do it. So can you, BigJohnny or anyone else!



Exactly, thank you for clearing this up. Thats what i did when i needed to know which way to go on my exhaust. I for one do not need to be spoon fed like the OP or he would have done something similar.
 

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Exactly, thank you for clearing this up. Thats what i did when i needed to know which way to go on my exhaust. I for one do not need to be spoon fed like the OP or he would have done something similar.
Is this thread about dual exhausts or people not searching for info before they ask questions?!!

Dennis
 

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Ok Dennis,

There are other search options besides these forums that return excellent results with the most basic search terms and a little bit of research. My biggest complaint (which Stryker and I share) is that most people are just to damn stupid or to damn lazy to do any research for themselves. Whether it's more likely the latter, the former or a combination of the two is up for discussion.
So many people today expect to be spoon fed the answers to their questions without having to make any effort whatsoever to find the answer(s) themselves.

A simple "H-Pipe X-Pipe" search typed into Google returned the following excellent explanation from Carcraft - read the excerpt below and if it's not to much trouble click the link and read the entire article.

I found this answer in less than two minutes with a minimal amount of effort. If I can do it. So can you, BigJohnny or anyone else!



thats fricken funny right there. i agree 100%
 

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well, since google exists I guess we don't need this or any other forum since we can all just search and find what we need.

but if we didn't have this or other forums, then google would prove to be useless, except for articles posted on actual websites.

So all this started because I asked a question relating to the thread, which in turn would enhance the thread with more information, and allow someone who found this thread by whatever means to have all of the info contained in one place.

because of this question, which may be an annoyance to answer but contains relevant info, someone comes in and spouts off to "search", which in turn adds nothing to the thread and brings the whole relevance of the thread down because it has turned into a bloody flame war about searching, and has turned away totally from the original topic of the thread.

the simple words "heard of search" have made this thread go way off topic, and contributed almost no good info to return to others who do search.... what they will find, is a bunch of people arguing about not searching, which discourages others from searching because all they can find is a bunch of people arguing about searching, and hence, they go and ask their question and get told to search........
 
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