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Old 06-19-2003, 06:13 PM   #1
Tim Quinn
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Member#: 16961
Join Date: Mar 2002
Chapter/Region: VIC
Location: Downtown Vancity
Vehicle:
2011 Kawi Ninja 400R
Kawasaki Green

Default exhaust for 2003 2.5RS?

Buddy of mine is getting a 3" sti muffler for his new rs, and he wants to do the rest of his exhaust in 3". Do you guys have any suggestions? perhaps custom bent exhaust, or should i convince hime to downsize to a more universal 2.5" size. Please let me know if you know anyone with this setup. Thanks a bunch guys.

Regard,
Tim Quinn
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Old 06-19-2003, 06:31 PM   #2
Reckon
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Join Date: May 2002
Chapter/Region: VIC
Location: M.R., B.C.
Vehicle:
2002 WRX Red/Carbon
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Hm.... I've heard that it's better to stick to piping that's 2.5" or 2.25" because you tend to lose power in the lower end if it's any bigger. 3" is generally more for turbo
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Old 06-19-2003, 08:37 PM   #3
Avenger
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Location: Vancouver, Canada
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On a N/A don't go more than 2.5"
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Old 06-19-2003, 08:51 PM   #4
fukamoto
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Location: Albany, NY
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2014 SWP WRX Wagon
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Quote:
Originally posted by Avenger
On a N/A don't go more than 2.5"
Is stock 2.25" or 2.5"?

Derek
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Old 06-19-2003, 08:56 PM   #5
Avenger
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2000

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Quote:
Originally posted by fukamoto


Is stock 2.25" or 2.5"?

Derek
I'm thinking either 2 or 2 1/4" My 2 1/2" down pipe is bigger than the regular pipe.
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Old 06-19-2003, 09:16 PM   #6
Reckon
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Quote:
Originally posted by fukamoto


Is stock 2.25" or 2.5"?

Derek
err... RS or WRX?
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Old 06-19-2003, 09:23 PM   #7
IBO
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Join Date: Apr 2001
Location: Burnaby, BC, Canada
Vehicle:
2002 Aspen White
2.5RS

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It should be 2".
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Old 06-19-2003, 09:28 PM   #8
imprezaboi
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Join Date: Jun 2001
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Location: Vancouver, BC
Vehicle:
MY01 GC8 - 4
BRP

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RS and below is 2"
WRX is 2.25"
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Old 06-19-2003, 09:33 PM   #9
Reckon
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believe imprezaboi to be right. think the rs is 1.8"
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Old 06-19-2003, 10:11 PM   #10
dcgear
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Chapter/Region: VIC
Location: Montreal QC / Vancouver BC
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2005 Impreza WRX STi
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damn thats small

and i dont think any sti mufflers are 3" in dia anyway
i think stock sti muffler is 2.5"
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Old 06-20-2003, 03:26 AM   #11
ashtaron14
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I have a 3" custom pipe... the car bogs until 3.5-4K, kinda weird... so I ordered a pulley to see if it could improve... tell you next week

Sunny
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