Catalytic Converters
12-20-2012, 08:54 AM
#1
Senior Member
Thread Starter
Catalytic Converters
I'm getting ready to take my truck to the muffler shop and put on a Flowmaster Super 44 exhaust muffler SI/DO. I was hoping someone could help me out and tell me what the catalytic converter is, and what happens when you take it out? When you take the CC out, does that mean that I can run "True Duals"? And if so, what's the difference between true duals and si/do?
12-20-2012, 09:06 AM
#2
jaxwireman
Google or wiki it, For one it helps reduce the emissions by aiding the unburnt fuel in the exhaust gas to burn before leaving the pipes. Also to make us spend a but load of money to replace by clogging up from things such as faulty injectors, rich running programmers adding to much fuel. You will fail emissions tesing if you remove it when they bring them back. Which they will for sate revenue at some point. I think our motors are designed with them in line and help keep the low end torque up just a tad.
Look up the exhaust thread from OTTO good read.
Look up the exhaust thread from OTTO good read.
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FL0rida CrAcK3r (12-20-2012)
12-20-2012, 09:13 AM
#3
Senior Member
Thread Starter
Google or wiki it, For one it helps reduce the emissions by aiding the unburnt fuel in the exhaust gas to burn before leaving the pipes. Also to make us spend a but load of money to replace by clogging up from things such as faulty injectors, rich running programmers adding to much fuel. You will fail emissions tesing if you remove it when they bring them back. Which they will for sate revenue at some point. I think our motors are designed with them in line and help keep the low end torque up just a tad.
Look up the exhaust thread from OTTO good read.
Look up the exhaust thread from OTTO good read.
Does it make it louder?
Does it mess my truck up by taking it out?
Does it make my truck better by taking it out?
What in the heck is true duals?
Those type of things. lol. Thanks for the response. I'm going to see if I can find the thread you were talking about.
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FL0rida CrAcK3r (12-20-2012)
12-20-2012, 09:19 AM
#5
Illegal not to have a Cat either.
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FL0rida CrAcK3r (12-20-2012)
12-20-2012, 09:20 AM
#6
Senior Member
i hear you can assemble a true dual offroad exhaust with gutted or deleted cats, with the o2 sensors still bunged in but with restrictor plugs that dont let all the exhaust gas get to the o2 and not throw a CHECK ENGINE LIGHT and maybe even pass emissionsin some cases.
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FL0rida CrAcK3r (12-20-2012)
12-20-2012, 09:27 AM
#8
Your 06 will have one cat on each side. Let's sort out a few things first:
1. Removing them completely is illegal (federal law)
2. Removing them doesn't produce any more power
3. If not tuned for it, yes your a/f will be off by removing them and your rear O2's will throw a code.
If you're looking for louder, you can replace them with "high flow" cats. That is the only reason to mess with them if you want a louder sound, otherwise it's not worth the trouble.
"True duals" is a old term that should be banned. True duals use to refer to one pipe coming from each manifold with no cross over, which creates a horrible imbalance in exhaust pulses. Today we just use the term duals. This is a system where each manifold comes down and connects together briefly in a X or H configuration. This balances the pulses and promotes better exhaust operation. A SI/DO single in/dual out is just as it sounds. Pipe from the manifold comes together in a single pipe from the Y, then (usually at the muffler) splits back into 2 pipes. It gives a good torque profile while giving the look of duals.
1. Removing them completely is illegal (federal law)
2. Removing them doesn't produce any more power
3. If not tuned for it, yes your a/f will be off by removing them and your rear O2's will throw a code.
If you're looking for louder, you can replace them with "high flow" cats. That is the only reason to mess with them if you want a louder sound, otherwise it's not worth the trouble.
"True duals" is a old term that should be banned. True duals use to refer to one pipe coming from each manifold with no cross over, which creates a horrible imbalance in exhaust pulses. Today we just use the term duals. This is a system where each manifold comes down and connects together briefly in a X or H configuration. This balances the pulses and promotes better exhaust operation. A SI/DO single in/dual out is just as it sounds. Pipe from the manifold comes together in a single pipe from the Y, then (usually at the muffler) splits back into 2 pipes. It gives a good torque profile while giving the look of duals.
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FL0rida CrAcK3r (12-20-2012)
12-20-2012, 09:27 AM
#9
Senior Member
Thread Starter
12-20-2012, 09:31 AM
#10
Senior Member
Thread Starter
Your 06 will have one cat on each side. Let's sort out a few things first:
1. Removing them completely is illegal (federal law)
2. Removing them doesn't produce any more power
3. If not tuned for it, yes your a/f will be off by removing them and your rear O2's will throw a code.
If you're looking for louder, you can replace them with "high flow" cats. That is the only reason to mess with them if you want a louder sound, otherwise it's not worth the trouble.
"True duals" is a old term that should be banned. True duals use to refer to one pipe coming from each manifold with no cross over, which creates a horrible imbalance in exhaust pulses. Today we just use the term duals. This is a system where each manifold comes down and connects together briefly in a X or H configuration. This balances the pulses and promotes better exhaust operation. A SI/DO single in/dual out is just as it sounds. Pipe from the manifold comes together in a single pipe from the Y, then (usually at the muffler) splits back into 2 pipes. It gives a good torque profile while giving the look of duals.
1. Removing them completely is illegal (federal law)
2. Removing them doesn't produce any more power
3. If not tuned for it, yes your a/f will be off by removing them and your rear O2's will throw a code.
If you're looking for louder, you can replace them with "high flow" cats. That is the only reason to mess with them if you want a louder sound, otherwise it's not worth the trouble.
"True duals" is a old term that should be banned. True duals use to refer to one pipe coming from each manifold with no cross over, which creates a horrible imbalance in exhaust pulses. Today we just use the term duals. This is a system where each manifold comes down and connects together briefly in a X or H configuration. This balances the pulses and promotes better exhaust operation. A SI/DO single in/dual out is just as it sounds. Pipe from the manifold comes together in a single pipe from the Y, then (usually at the muffler) splits back into 2 pipes. It gives a good torque profile while giving the look of duals.
So what is an "x" pipe and where does it go?