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Old 08-19-2010, 05:39 PM   #1
JBH2989
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Default Headers for '10 OBS?

Has anyone upgraded the headers on their 08+ OBS or 2.5i? Do the WRX headers fit?
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Old 08-19-2010, 06:12 PM   #2
RaceFaceXC
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yes. no.
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Old 08-19-2010, 06:49 PM   #3
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If anyone has any recommendations as far as what they have and/or a good place to get them - that'd be awesome. Thanks in advance.
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Old 08-19-2010, 11:49 PM   #4
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Quote:
Originally Posted by JBH2989 View Post
If anyone has any recommendations as far as what they have and/or a good place to get them - that'd be awesome. Thanks in advance.
Take a look at this.
http://forums.nasioc.com/forums/show...light=obx+2008
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Old 08-20-2010, 10:37 AM   #5
JBH2989
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So the OBX EL headers for 98-05 imprezas fit the 08+ models?
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Old 08-20-2010, 03:11 PM   #6
09suby
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Originally Posted by JBH2989 View Post
So the OBX EL headers for 98-05 imprezas fit the 08+ models?
yes, and no. You have to have a muffler shop add a pipe to connect the resonator pipe of the header to your center pipe. its all explained in that link that I posted.
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Old 08-20-2010, 03:43 PM   #7
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It seem like the resonator pipe+4" extension is gong to replace the catalytic converter (since they connect right to the midpipe). Is that correct, wont you get some ugly CEL's (due to a lack of pre- & post- cat O2 sensor readings)?
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Old 08-20-2010, 03:52 PM   #8
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Thanks for the info and also not flogging me for asking.
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Old 08-20-2010, 06:08 PM   #9
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Quote:
Originally Posted by Steckers View Post
It seem like the resonator pipe+4" extension is gong to replace the catalytic converter (since they connect right to the midpipe). Is that correct, wont you get some ugly CEL's (due to a lack of pre- & post- cat O2 sensor readings)?
Yes it's correct and yes you will get an ugly CEL. P0420 to be specific.
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Old 08-20-2010, 06:15 PM   #10
Steckers
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Ok so what if you dont put in the resonator pipe, and instead put in a HFC? Would this help at all??
Of course you would need to measure the distance from flange on header to that of midpipe, to be sure the HFC is correct size (or weld on an extension as needed)...right? (this kinda makes sense to me, haha)
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