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Old 01-15-2005, 10:39 AM   #1
boost4life
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Member#: 75129
Join Date: Nov 2004
Chapter/Region: MWSOC
Location: Marquette,mi area
Vehicle:
09 WRX stg 2+
Lost the boxer rumble

Default Factory WRX axle back vs. STI axle back

Does anyone know if there is a design diff between them or is the piping on the sti larger?

I'm running a 3"TBE now with a blitz nur spec catback also cobb stg 2
I want to have the stock apearence though, Does anyone know if I put a sti axle back on how much hp I would loose?? or if I would have to much back pressure for the stg 2 map
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Old 01-15-2005, 10:46 AM   #2
kennyvb
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Member#: 70234
Join Date: Sep 2004
Chapter/Region: Tri-State
Location: NYC
Vehicle:
MY86 BMW E30 325
SCIC/NWIC tranplant (-_-)

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get one custom fabricated to retain 3". get the largest straight-through muffler that will fit and just paint it it black. finish off with a mild tip. the sti axle-back is 2.5".
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Old 01-15-2005, 01:35 PM   #3
Phil Jr.
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Join Date: May 2004
Chapter/Region: Tri-State
Location: Philly, PA
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they looks IDENTICAL to me...
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Old 01-15-2005, 04:58 PM   #4
hondaeater69
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Join Date: Apr 2004
Location: a pillow.
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Don't expect to lose much, and you can still run stage 2 (some people are running stage 2 with just a short DP and all rest stock). Diameter is the same, not sure about design. May want to consider borla hush twip tip also.
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