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UP: Flex vs. Solid?


ogradnis

Which type of UP would you rather install/have?  

102 members have voted

  1. 1. Which type of UP would you rather install/have?

    • UP w/ flex section
    • Solid UP
    • Stay stock, stay happy
    • What's an UP?


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For those who have done an UP install themselves:

 

- Did you use a flex pipe or solid pipe?

 

- If you used a solid pipe; would going with a flex have made the install easier?

 

- If you went with a flex, has the flex cracked/split or given any other problems?

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The install makes no difference at all, but I went with a solid UP and fixed the leak 3 times before finally going with a flex. Fogetabboutit - go flex if you don't want it to leak.
[CENTER][URL="http://legacygt.com/forums/showthread.php?t=18504"]Subaru Plug & Play Aux-in Mod[/URL][/CENTER] [CENTER][URL="http://www.jazzyengineering.com"]www.jazzyengineering.com[/URL][/CENTER]
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It doesn't hurt to revisit the issue as some of us still feel the need to learn the hard way...I don't know why...

 

You can also get integrated header-up and forget about the joint that leaks altogether (what I finally did).

[CENTER][URL="http://legacygt.com/forums/showthread.php?t=18504"]Subaru Plug & Play Aux-in Mod[/URL][/CENTER] [CENTER][URL="http://www.jazzyengineering.com"]www.jazzyengineering.com[/URL][/CENTER]
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I think that a set of headers plus solid uppipe will have enough flexibility to allow the flanges to tighten up flat. Headers are more flexible than the stock exhaust manifold. Also, when installing both an up and headers, you can tighten all the nuts finger tight first and then torque each nut a little bit at a time.

 

There are always mfg tolerance buildup. Look at how many pieces and joints there are between the header exhaust and the turbo inlet. Even the position of the OEM exhaust manifold can shift slightly so it doesn't surprise me that some people have exhaust leaks with a solid uppipe and some don't.

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This may be a repost...but did the original have the super-awesome poll attached?

 

Lets be honest. It's the poll that makes this thread:icon_redf

 

So, what's a good name in flex pipes? Turbo XS is the one I'm thinking I'll get. It's certainly one of the more expensive ones.

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Honestly, if your going to do the up-pipe, just do headers and be done. get gt spec type that has a 3 bolt up-pipe to manifold connection and you should be leak free. I just made the switch from a solid up-pipe to this set up. I wish I would've done it before. I have the Mad Dad V2 headers which were put on last night.
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