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What is a test pipe exactly?

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Old Jul 25, 2011, 04:55 PM
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What is a test pipe exactly?

So then... what exactly is a test pipe? If you want to feel really helpful, what are the components of the exhaust in order?

Thanks squad...

Also... what the heck is the stock redline on the IX MR? lol omg I feel like such a noob right now...

TIA
Old Jul 25, 2011, 05:00 PM
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A test pipe is just a straight pipe that replaces your Catalytic converter. It don't filter, and you will fail emissions with it.
Old Jul 25, 2011, 05:00 PM
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A test pipe is just a piece of tubing with the correct flanges welded on to be a direct replacement for catalytic converter. It won't pass any state or federal inspections, including emissions. It can also cause your car to run bad on certain cars.

Components of the exhaust system are going to be:

Exhaust manifold
Turbocharger
Downpipe
catalytic converter (aka cat) OR test pipe
cat-back exhaust (includes any resonators or mufflers)

I might be missing something... I feel like I am for some reason lol

Last edited by Vivid Racing; Jul 25, 2011 at 05:06 PM.
Old Jul 25, 2011, 06:42 PM
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Originally Posted by Vivid Racing
A test pipe is just a piece of tubing with the correct flanges welded on to be a direct replacement for catalytic converter. It won't pass any state or federal inspections, including emissions. It can also cause your car to run bad on certain cars.

Components of the exhaust system are going to be:

Exhaust manifold
Turbocharger
Downpipe
catalytic converter (aka cat) OR test pipe
cat-back exhaust (includes any resonators or mufflers)

I might be missing something... I feel like I am for some reason lol
No... that makes perfect sense. I mean, I'm not a moron... I do most of my own work, I guess I had just never heard the term test pipe used for a pipe in place of a cat.

I assume the logic here is so you can just bolt a cat into place for inspection and then put the test pipe in for uhhh... non-inspections lol?

Anyone have the redline for me? (right after I mention I'm not a moron lol)
Old Jul 25, 2011, 06:47 PM
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wikipedia is your new best friend
Old Jul 25, 2011, 07:09 PM
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Originally Posted by Vivid Racing
A test pipe is just a piece of tubing with the correct flanges welded on to be a direct replacement for catalytic converter. It won't pass any state or federal inspections, including emissions. It can also cause your car to run bad on certain cars.

Components of the exhaust system are going to be:

Exhaust manifold
Turbocharger
Downpipe
catalytic converter (aka cat) OR test pipe
cat-back exhaust (includes any resonators or mufflers)

I might be missing something... I feel like I am for some reason lol
You're right about feeling like something is missing...the o2 housing
Old Jul 25, 2011, 07:10 PM
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what is emissions
Old Jul 25, 2011, 07:17 PM
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Old Jul 25, 2011, 07:31 PM
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What is a test pipe exactly?

Its what happens when you first engage a girl in the park...at night
Old Jul 25, 2011, 08:50 PM
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Eh... I have no good comeback...but whats a forum without some stupid noobs?
Old Jul 25, 2011, 08:51 PM
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Lol
Old Jul 26, 2011, 12:53 AM
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what happens if a cop pulls you over for going 40 in a 25??

you tell them only reason why you was speeding because you have to poop :P
Old Apr 24, 2013, 05:55 PM
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Old Aug 27, 2014, 10:37 PM
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What is the purpose of a test pipe? More hp? How much louder does it make your exhaust?
Old Feb 2, 2015, 08:33 AM
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Originally Posted by turboeclipse2wd
What is the purpose of a test pipe? More hp? How much louder does it make your exhaust?
If you are serious on that question,

It should get it a bit louder, depending on many exhaust factors like pipe diameter, etc
Having no Cat is less restrictive, therefore, your engine will have an easier time "pushing" gases out to start a new cycle
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