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Old 05-18-2005, 04:28 PM   #1
Udonboy
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Default Difference between WRX Prodrive and STI Prodrive springs?

I was wondering what exactly are the differences between the Prodrive springs made for the WRX and the Prodrive springs made for the STI are? To be a little more specific, I'm more interesed in how the 04+ WRX Prodrive springs differ from the STI Prodrives. I know the STI Prodrive springs are red and the WRX are blue. I'm assuming the springs rates are different, but what exactly is different? Thanks

Jason
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Old 05-19-2005, 04:28 AM   #2
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Anybody?
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Old 05-19-2005, 04:38 AM   #3
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Spring rates. Maybe ride height. They don't publish their rates though so no one knows. My assumption would be you can't use your stock WRX struts with them, if that's where you're going with this.

edit: Not that you can't use stock struts, but you shouldn't.
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Old 05-19-2005, 04:42 AM   #4
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I already bought the WRX Prodrives, but I was just wondering what the differences are between the two.
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Old 05-19-2005, 09:22 AM   #5
Siper2
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Not sure. EZ Rider is probably right, though.

2002+ Impreza spring rates for Prodrive/STi springs have been typically lower than the spring rates for Prodrive/STi springs on the old-style cars... The P1 springs are ideally paired with STi Type RA struts, but work with regular STi V5/6 struts if need be.

However.... I bet the springs are still taut enough to be better off with STi struts on a new-age car.

=S2=
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Old 05-19-2005, 02:57 PM   #6
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prodrive springs for the STi also get a bumpstop replacement.
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Old 05-19-2005, 11:02 PM   #7
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Quote:
Originally Posted by Arnie
prodrive springs for the STi also get a bumpstop replacement.
STi struts have external bump stops?
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Old 05-20-2005, 01:21 AM   #8
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Quote:
Originally Posted by Zuffy
STi struts have external bump stops?
They're external to the strut, but internal to the strut assembly/housing... more or less. You remove a nut on the bottom of the strut housing/assembly, pull the strut itself out from the top, and there's a bump stop on the shaft of it. The strut looks pretty puny once you get it out.

-Mike-
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Old 05-20-2005, 02:06 AM   #9
WRXedUSA
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Prodrive (Eibach) makes different springs for different cars.

WRSport (2001-prior RS)
44s (2002-2003 WRX, TS, RS)
44s (2004 WRX)
Sports (STi, 2004-2005)


Might want to look at Eibach if you are needing spring rates. The only thing Prodrive offers is alingment settings.
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Old 05-22-2005, 08:00 PM   #10
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Quote:
Originally Posted by CreoWRX
They're external to the strut, but internal to the strut assembly/housing... more or less. You remove a nut on the bottom of the strut housing/assembly, pull the strut itself out from the top, and there's a bump stop on the shaft of it. The strut looks pretty puny once you get it out.

-Mike-
Cool, thanks! I saw the Prodrive instructions, and you are right the strut shaft does look puny.
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