Mid-pipe?
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This is a discussion on Mid-pipe? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I have obtained an up-pipe, down-pipe, and a mid-pipe recently. I am doing my up-pipe today, but know i need ...

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    Mid-pipe?

    I have obtained an up-pipe, down-pipe, and a mid-pipe recently. I am doing my up-pipe today, but know i need a tune for a down-pipe. My question is if i need a tune for a mid-pipe? Its all cat-less so i assume i would correct?

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    Registered User v6mx6ls36's Avatar
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    Mid-pipe?

    Your not gonna need a tune for the mid pipe . Just the down pipe . You can put a cat back on the car and all it's gonna do is make it sound nice , unless u buy a crappy eBay exhaust then it's gonna sound horrible.

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    OMG WTF MainFrame's Avatar
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    Only the downpipe really requires a tune.. that said, if you have it and plan on installing it, why wouldn't you install it along with the downpipe, before you get tuned?

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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by MainFrame
    Only the downpipe really requires a tune.. that said, if you have it and plan on installing it, why wouldn't you install it along with the downpipe, before you get tuned?
    You have to remove the downpipe in order to install an uppipe. You may as well hold off until you can replace it, too.

    The only reason to do an uppipe before you can install the downpipe is if you have a 2.0L car, where there's a catted unit from the factory. Otherwise, don't get ahead of yourself and just wait.
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    it is a 2.0, I struggled getting the heat shield off of the headers/ uppipe. i need to find a better way to get the o2 sensor off there. i couldnt seem to find a good way to go about it. and also my a/c lines were impossibly in the way of me getting to the downpipe... any help in these fields? what have you guys done in these situations? I am going to give it another whirl tomorrow after school.

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    OMG WTF MainFrame's Avatar
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    I didn't worry about the O2 sensor until I had it off the car.. then I don't remember it being difficult. Just unplug the O2 sensor harness, then remove the exhaust manifold and uppipe. (same with the EGT sensor)



    You remove the downpipe from underneath the car, the A/C lines aren't even close to being in the way (from what I remember).

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    Registered User 11blackwrx's Avatar
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    the midpipe is part of the catback portion of the exhaust, which wont require a tune
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    OMG WTF MainFrame's Avatar
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    Quote Originally Posted by 11blackwrx View Post
    the midpipe is part of the catback portion of the exhaust, which wont require a tune


    My midpipe was actually the part of the exhaust containing the catalytic converter, upstream from the catback.. but not every system is designed that way.

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    Registered User 11blackwrx's Avatar
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    Quote Originally Posted by MainFrame View Post
    My midpipe was actually the part of the exhaust containing the catalytic converter, upstream from the catback.. but not every system is designed that way.
    are you talking about some of the dp's that are 2 parts
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    OMG WTF MainFrame's Avatar
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    Yeah, I have the TurboXS stealthback..



    For what it's worth, the midpipe is also not part of the catback when it comes to stock exhaust either.


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    Registered User 11blackwrx's Avatar
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    thanks for that. guess the invidia is different than that
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    OMG WTF MainFrame's Avatar
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    Yeah, the long style downpipes include the midpipe.. so it's still not really a part of the catback.

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    MAINEiac 11blackSTi's Avatar
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    I always thought CBE was midpipe, y pipe, mufflers...then TBE also included the downpipe...

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    I am talking about getting the down-pipe off the turbo. The a/c lines are right above/ behind the turbo right off the fire wall

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    OMG WTF MainFrame's Avatar
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    Quote Originally Posted by Cheets View Post
    I am talking about getting the down-pipe off the turbo. The a/c lines are right above/ behind the turbo right off the fire wall


    What year model is your car? I've done probably a dozen downpipe installs on 02-05 WRX.. never have the A/C lines been an issue. even when using a cheater bar on the top bolts.


    Soak the bolts with PB Blaster for a few hours. Then put a wrench in the head of the bolt and a socket on the nut and turn. If you're hitting the A/C lines with the handle of the ratchet (I never have, but I can only guess that is your problem??), then I suppose you could put the ratchet on the side toward the front of the car and use a small extension.


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