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Old 10-05-2004, 03:25 PM   #1
Scooby Newbie
Member#: 71909
Join Date: Oct 2004
Default Can the STi exhaust mount on an R.S

I own an 2001 R.S. and i have at my despoisal a 2004 exhaust system. can the exhaust mount on to mine from cat-back or just the pipe. thankyou for helping me with my deliema.
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Old 10-05-2004, 03:45 PM   #2
Scooby Specialist
Member#: 38280
Join Date: Jun 2003
Chapter/Region: RMIC
Location: Lakewood, Colorado
2000 2.5RS w/ EJ205
tuned @ teh Ghetto Garage


The flanges don't mate correctly (IIRC, the 04 flange is rotated 90deg or so from the 01RS flange), so it won't BOLT on, but that doens't mean it won't fit. Also, the exhaust piping is larger on the 04 STi.

Take it to an exhaust shop and they will lift up your car and see if they can do any weld/bending to fit it...and they usually can
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Old 10-05-2004, 06:50 PM   #3
Scooby Guru
Member#: 25516
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Send help, stuck in internet!
1995 Legacy TURBO!!!
EJ22T/TEC3 & '12 Civic


hanger locations are different. that is easy to fix. they will have to reduce the size from like 2.25 to whatever the n/a exhaust is. i have exhaust on my 95 legacy from a 92 turbo. I plan to run aftermarket wrx exhaust.
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Old 10-05-2004, 07:39 PM   #4
Scooby Guru
Member#: 51282
Join Date: Dec 2003
Chapter/Region: Tri-State
Location: Brooklyn
98 RS
black & blue from parking


If you do cat-back, you'll need to remove the resonator from the midpipe to make it fit your heat-shields.
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Old 10-05-2004, 11:32 PM   #5
Scooby Specialist
Member#: 42209
Join Date: Aug 2003
Location: Long Island, NY
2004 2.5RS
SQC #158 Silver


u can use it if u fit a custom midpipe onto the axleback
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