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Threads Tagged with
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Check Engine (PO421) trouble.
mp5wgn
on August-30th-2005
October-2nd-2016
04:10 PM
by
ldstia@yahoo.com
12
43,806
3rd gen Engine/Drivetrain
Cat-Back Exhaust?
jamesski
on April-25th-2012
August-25th-2012
01:48 AM
by
TRISPEEDFD3S
3
2,130
Mazda3/Mazdaspeed3
Cel p0421
Asad1012
on December-4th-2011
December-4th-2011
09:59 PM
by
Asad1012
0
3,937
Mazda3/Mazdaspeed3
Mazdaspeed 3 turboback exhaust
donightwolfdo
on February-8th-2010
February-9th-2010
04:13 PM
by
Sigal87
2
2,980
Mazda3/Mazdaspeed3
catalytic converter
204muscleman3
on October-5th-2009
October-13th-2009
09:22 AM
by
204muscleman3
4
8,724
2nd Gen Protege
Mazda3 CATBACK EXHAUST
MattAdams6
on October-12th-2009
October-12th-2009
08:02 PM
by
MattAdams6
0
1,665
Parts For Sale or Wanted
manifold catalytic converter
204muscleman3
on October-5th-2009
October-5th-2009
02:58 PM
by
204muscleman3
0
1,671
Mazda Service Info
FS: Vibrant Catback exhaust 2.3l hatchback
PQPE
on May-20th-2009
August-11th-2009
03:08 PM
by
jtieo84
4
9,272
Southwestern US
WTS/T: Draxas Header & Race Pipe $250 shipped OBO.
Tigermack
on December-6th-2006
July-3rd-2009
03:22 PM
by
Tigermack
4
3,178
Parts For Sale or Wanted
Exhaust system
Anthony14
on June-29th-2007
April-27th-2009
12:54 AM
by
mazdaguy18
10
5,684
Mazda3/Mazdaspeed3
Vibrant or Corksport Exhaust?
theSidesweep
on August-30th-2008
March-9th-2009
09:21 AM
by
misir00
12
17,551
Mazda3/Mazdaspeed3
WTB warm up cat for 02 Protege
trancenental
on October-13th-2008
October-13th-2008
05:27 PM
by
trancenental
0
1,029
Parts For Sale or Wanted
FS: Mazda3 Magnaflow Cat-Back Exhaust
MaZda3Sgotya
on March-28th-2005
October-11th-2008
07:48 PM
by
VenomDesign
2
1,834
Parts For Sale or Wanted
Thunder Catback exhaust
macdaddyslomo
on February-10th-2008
April-8th-2008
11:00 AM
by
macdaddyslomo
6
1,362
Parts For Sale or Wanted
Protege vs. Escort GT
MDLockard
on November-8th-2007
November-13th-2007
06:43 PM
by
Turpro
3
4,759
1st Gen Protege/323/GLC
1G Protege: How to remove the intake manifold
Turpro
on September-4th-2007
September-27th-2007
09:32 AM
by
_Kansei_
3
11,893
How-To's
Exhaust Wrap?
(
1
2
)
Maxx Mazda
on May-29th-2003
September-24th-2007
01:47 PM
by
Da P-Funk!
23
3,066
3rd gen Engine/Drivetrain
03 mazdaspeed protege
(
1
2
3
)
msp03
on July-30th-2007
August-7th-2007
02:51 PM
by
JoshP5
36
8,585
3rd Gen Protege/MazdaSpeed/P5/MP3
Vibrant Cat Back - Review Protege 5
Shasta
on May-12th-2007
May-17th-2007
09:19 PM
by
_Kansei_
7
2,316
3rd Gen Protege/MazdaSpeed/P5/MP3
Will Borla Exhaust fit 07 Sedan?
clubhead
on May-3rd-2007
May-16th-2007
06:00 PM
by
Ken@ProtegeGarage
2
1,278
Mazda3/Mazdaspeed3
na power idea for my 2.0L 3i. is it safe?
3i&proud
on November-16th-2006
November-17th-2006
10:12 PM
by
Roddimus Prime
4
1,179
Mazda3/Mazdaspeed3
Catalytic Converter Compatability
ANGEL1
on August-2nd-2006
August-3rd-2006
02:59 PM
by
kargoboy
5
2,775
3rd Gen Protege/MazdaSpeed/P5/MP3
Calculating A/F Ratio from precat O2 sensor
dynamho
on July-31st-2006
July-31st-2006
03:40 PM
by
macdaddyslomo
5
966
3rd gen Engine/Drivetrain
OEM Exhaust 2002 Protege 5
lowflowin
on April-18th-2006
April-18th-2006
11:48 PM
by
lowflowin
0
843
Parts For Sale or Wanted
code 421 - clogged cat? sensor?
MiltonOS
on November-1st-2005
February-19th-2006
10:51 AM
by
Mazdacub
10
4,292
3rd gen Engine/Drivetrain
Gutted Cat.
hughes412
on August-14th-2005
August-14th-2005
08:25 PM
by
Roddimus Prime
4
1,051
3rd Gen Protege/MazdaSpeed/P5/MP3
highflow cat for the n/a guys.
hughes412
on July-15th-2005
July-15th-2005
10:04 PM
by
Roddimus Prime
1
732
3rd Gen Protege/MazdaSpeed/P5/MP3
High flow cat
slowpro
on April-1st-2005
April-2nd-2005
09:24 AM
by
BluP5
2
1,774
3rd Gen Protege/MazdaSpeed/P5/MP3
CEL gone!
zmanpro63
on February-18th-2005
February-18th-2005
11:40 AM
by
Roddimus Prime
3
1,121
3rd gen Engine/Drivetrain
? about high flow cats
hughes412
on December-21st-2004
December-22nd-2004
08:22 PM
by
zerocover
4
1,234
3rd gen Engine/Drivetrain
Mazda 3 Borla Cat-Back Sound clip
Omron
on December-22nd-2004
December-22nd-2004
03:49 PM
by
Omron
0
1,173
3rd Gen Protege/MazdaSpeed/P5/MP3
~~~~ Borla (First look) Stainless Steel CAT-BACK Exhaust System
Omron
on December-11th-2004
December-17th-2004
09:09 AM
by
Rio Grande
7
3,362
3rd Gen Protege/MazdaSpeed/P5/MP3
New Cat Back
vielster
on December-15th-2004
December-16th-2004
08:03 AM
by
vielster
2
813
3rd gen Engine/Drivetrain
FS: MSP stock catback w/Racing Beat Axle back
phatom
on November-23rd-2004
December-2nd-2004
01:02 PM
by
03protege
2
773
Parts For Sale or Wanted
EXHAUST GB - Borla, GReddy, HKS, JIC, Magna Flow, Tanabe, Thermal RD Free Shipping
ImportCarPartsPlus
on October-18th-2004
November-10th-2004
06:09 PM
by
Roddimus Prime
2
3,615
Group Buys
Racing Beat Axle Back Exhaust System
(
1
2
)
FocalFlareES
on September-10th-2004
November-1st-2004
02:07 PM
by
FocalFlareES
18
1,832
Parts For Sale or Wanted
hollowed out cat
(
1
2
)
pr5guy
on August-2nd-2004
August-6th-2004
09:45 AM
by
Racing Beat
19
1,519
3rd Gen Protege/MazdaSpeed/P5/MP3
Replacing Catalytic Converter
ProBoi94
on July-10th-2004
August-2nd-2004
12:04 AM
by
qjohn
11
4,437
1st Gen Protege/323/GLC
Guaging Interest: Wagner Tubular Header GB
(
1
2
3
4
5
...
Last Page
)
Roddimus Prime
on April-7th-2004
July-19th-2004
11:32 PM
by
Dimitrios
450
16,875
Vendor Section
93 catback exhaust install?
G-Man
on May-25th-2004
May-30th-2004
05:43 PM
by
keith_ecko
5
807
1st Gen Protege/323/GLC
Page 1 of 3
1
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>
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