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Old 05-03-2004, 08:37 PM   #1
MikalsWRX
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Default Is there a big difference in up-pipes?

Or is it just preference. Like between HKS, Invidia, Turbo XS. Stuff like that.I know the HKS down pipe doesnt have the bell mouth so it doesnt flow as much air. But as far as up-pipes can there be that much difference. My friend has an HXS up-pipe for $80. Am I gonna be upset because I didnt get the one with the flex in it?Or there isnt that much difference. Thanks Laters Mikal
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Old 05-03-2004, 08:39 PM   #2
I_say
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get the flex, it reduces the chance of leaks and is much more efficient power and money wise
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Old 05-03-2004, 10:06 PM   #3
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The "best" ones in my opinion are in order:

1. TurboXS non flex cast iron
2. Crucial Racing Systems coated non flex uppipe
3. All others

When money is a factor, go with cheap. Get used or a new GT Spec.

All uppipes produce the same power.

Leaking is dependant on the installation, not the flex or lack thereof.
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Old 05-04-2004, 04:41 AM   #4
sherifx
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First of all, this is a question for the Technical forums

Quote:
Originally posted by I_say
get the flex, it reduces the chance of leaks and is much more efficient power and money wise
Secondly, this isn't true. A flex will eventually degrade and fall apart. The TurboXS cast iron pipe, imho is the best if you plan on staying with the stock headers. Rational is this; you manifold is cast, your turbine side of your turbo is cast; a cast up-pipe will not only prevent leaks because all the metals are expanding and contracting at the same rates, but cast iron is great for heat retention, which further aides in turbo spool and efficiency

and leakage is completely dependant on installation, do it right and you're money, do it wrong and it'll leak for days, regardless of what brand/kind you have.

sherif
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Old 05-04-2004, 06:23 AM   #5
MisterX
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The Crucial pipe is much lighter though.
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Old 05-04-2004, 06:33 AM   #6
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dude, serious weight savings aren't going to come from the up-pipe, they're going to come from gutting the interior etc;

sherif
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Old 05-04-2004, 07:13 AM   #7
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Quote:
Originally posted by sherifx
dude, serious weight savings aren't going to come from the up-pipe, they're going to come from gutting the interior etc;

sherif
there are better ways like removing those the heavy motor, tranny, and brakes then you are talking about good weight savings....yet another pointless post
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Old 05-04-2004, 08:48 AM   #8
1DOWNCLOWN
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oh here we go again
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Old 05-04-2004, 02:58 PM   #9
awdman
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Default Don't forget

you can also decat the factory uppipe. It's cheap, has flex and you know it will fit right. Plus the dealer can't tell from looking at it and bust your warranty..
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Old 05-04-2004, 03:26 PM   #10
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Gut the stocker.
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Old 05-04-2004, 04:02 PM   #11
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are you racing it? if not.. save the labor, save the warranty and put the money toward something else.. 500 rpm quicker spool will do nothing for you as a daily driver except get you complaining about gas efficiency.
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Old 05-04-2004, 04:05 PM   #12
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Quote:
Originally posted by myracle
500 rpm quicker spool will do nothing for you as a daily driver
Anything that helps the wrxs low end makes it a more enjoyable daily driver.
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Old 05-04-2004, 04:10 PM   #13
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I like the helix flex myself. It's inexpensive and very well made. A flex pipe will outlast your car, who cares if the non-flex will outlast you.
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Old 05-04-2004, 04:11 PM   #14
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I run a Turbo XS uppipe. I love it since it retains heat very well compared to non coated or wrapped stainless. You don't need a flex to have a leak free uppipe. You just have to install it correctly.

Quote:
Originally posted by myracle
are you racing it? if not.. save the labor, save the warranty and put the money toward something else.. 500 rpm quicker spool will do nothing for you as a daily driver except get you complaining about gas efficiency.
Are you serious? An uppipe is the best first mod for power on a WRX. It helps spool, top end, and removes that awful precat.
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Old 05-04-2004, 04:14 PM   #15
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Quote:
Originally posted by myracle
are you racing it? if not.. save the labor, save the warranty and put the money toward something else.. 500 rpm quicker spool will do nothing for you as a daily driver except get you complaining about gas efficiency.
wow...

sherif
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Old 05-04-2004, 04:15 PM   #16
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Quote:
Originally posted by sherifx
wow...

sherif
Especially considering all it has to cost you is a afternoon of your time.
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Old 05-04-2004, 07:03 PM   #17
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Quote:
Originally posted by sherifx
wow...

sherif
well said!

I can't imagine why you would want quicker spool and more low end torque on a daily driver.
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Old 05-04-2004, 07:15 PM   #18
riverarob
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Only get as much as you can afford or feel comfortable with.
PDE, Vishnu to name a couple are top of the line.....worth the price for quality & piece of mind.
On a budget......buy a used stocker and gut it or gut your own...other than your time, it's free.

Oh......and I don't recall ever reading a post on someones
up-pipe failing on these forums but I've read a few with leaking issues
Talk to the nice people at Titanmotorsports. They'll steer you in the right direction. They can even do the install if you don't feel comfortable with it.
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Old 05-04-2004, 07:20 PM   #19
fastsubie
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My vote goes to the Perrin GenIII uppie. I've had one on my car since 5k miles (32k now) and no leaks. It's stainless, powder coated and comes the resistor cell fix.

My $0.02

-Fess
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