We carry thousands of Jeep parts - from CJs up to JK Wranglers

Jeep CJ Exhaust Systems

Get your CJ to purr with a new exhaust system.  With a new cat and muffler combo, you'll get better performance, more power, and a better sound, plus they are easy to install!

To see our list of Jeep CJ exhaust systems just look below:


Tail Pipe fits 1982 1986 Jeep CJ7 CJ5 CJ5CJ7 WALKER Tail Pipe fits 1982 1986 Jeep CJ7 CJ5 CJ5CJ7 WALKER
$48.22
Buy It Now for only: $48.22
Tail Pipe fits 1982 1986 Jeep CJ7 CJ5 CJ5CJ7 WALKER
HOT ROD CLIFFORD HEADERS AMC Jeep 1982 CJ 7 6 CYLINDER 258cid HOT ROD CLIFFORD HEADERS AMC Jeep 1982 CJ 7 6 CYLINDER 258cid
$70.00
HOT ROD CLIFFORD HEADERS AMC Jeep 1982 CJ 7 6 CYLINDER 258cid
Borla 14572 Touring Cat Back Exhaust System Fits 81 86 CJ7 Borla 14572 Touring Cat Back Exhaust System Fits 81 86 CJ7
$324.99
Buy It Now for only: $324.99
Borla 14572 Touring Cat Back Exhaust System Fits 81 86 CJ7
Used Exhaust Intake Manifold fits 46 53 Jeep Willys 22L L4 CJ2A Used Exhaust Intake Manifold fits 46 53 Jeep Willys 22L L4 CJ2A
$150.00
Used Exhaust Intake Manifold fits 46 53 Jeep Willys 22L L4 CJ2A
Catalytic Converter Fits 1988 1989 GMC R3500 74L V8 GAS OHV Catalytic Converter Fits 1988 1989 GMC R3500 74L V8 GAS OHV
$161.16
Buy It Now for only: $161.16
Catalytic Converter Fits 1988 1989 GMC R3500 74L V8 GAS OHV
Catalytic Converter for 1992 Plymouth Colt FWD 15L L4 GAS SOHC GL Catalytic Converter for 1992 Plymouth Colt FWD 15L L4 GAS SOHC GL
$105.31
Buy It Now for only: $105.31
Catalytic Converter for 1992 Plymouth Colt FWD 15L L4 GAS SOHC GL
Catalytic Converter for 2002 GMC Yukon 4WD 48L V8 GAS OHV SLE Catalytic Converter for 2002 GMC Yukon 4WD 48L V8 GAS OHV SLE
$263.90
Buy It Now for only: $263.90
Catalytic Converter for 2002 GMC Yukon 4WD 48L V8 GAS OHV SLE
1976 1989 AMC JEEP CJ CJ7 CJ8 YJ WRANGLER 42L 6 Cyl EXHAUST MANIFOLD OEM 1976 1989 AMC JEEP CJ CJ7 CJ8 YJ WRANGLER 42L 6 Cyl EXHAUST MANIFOLD OEM
$80.00
Buy It Now for only: $80.00
1976 1989 AMC JEEP CJ CJ7 CJ8 YJ WRANGLER 42L 6 Cyl EXHAUST MANIFOLD OEM
1976 1989 AMC JEEP CJ CJ7 CJ8 YJ WRANGLER 42L 6 Cyl EXHAUST MANIFOLD OEMb 1976 1989 AMC JEEP CJ CJ7 CJ8 YJ WRANGLER 42L 6 Cyl EXHAUST MANIFOLD OEMb
$75.00
Buy It Now for only: $75.00
1976 1989 AMC JEEP CJ CJ7 CJ8 YJ WRANGLER 42L 6 Cyl EXHAUST MANIFOLD OEMb
Civic ABA EU 4 R muffler Honda Free Shipping used parts 18030 S6C J11 Civic ABA EU 4 R muffler Honda Free Shipping used parts 18030 S6C J11
$144.99
Buy It Now for only: $144.99
Civic ABA EU 4 R muffler Honda Free Shipping used parts 18030 S6C J11
Borla 14572 Touring Cat Back Exhaust System Fits 81 86 CJ7 Borla 14572 Touring Cat Back Exhaust System Fits 81 86 CJ7
$333.53
Buy It Now for only: $333.53
Borla 14572 Touring Cat Back Exhaust System Fits 81 86 CJ7
Genuine Ford Center Muffler CV6Z 5230 CJ Genuine Ford Center Muffler CV6Z 5230 CJ
$317.40
Buy It Now for only: $317.40
Genuine Ford Center Muffler CV6Z 5230 CJ
Exhaust Muffler SoundFX Direct Fit Muffler WALKER 18389 fits 83 86 Jeep CJ7 Exhaust Muffler SoundFX Direct Fit Muffler WALKER 18389 fits 83 86 Jeep CJ7
$41.99
Buy It Now for only: $41.99
Exhaust Muffler SoundFX Direct Fit Muffler WALKER 18389 fits 83 86 Jeep CJ7
Exhaust Tail Pipe WALKER 44784 fits 82 86 Jeep CJ7 25L L4 Exhaust Tail Pipe WALKER 44784 fits 82 86 Jeep CJ7 25L L4
$32.99
Buy It Now for only: $32.99
Exhaust Tail Pipe WALKER 44784 fits 82 86 Jeep CJ7 25L L4
Exhaust Tail Pipe WALKER 42006 fits 59 70 Jeep CJ5 22L L4 Exhaust Tail Pipe WALKER 42006 fits 59 70 Jeep CJ5 22L L4
$25.99
Buy It Now for only: $25.99
Exhaust Tail Pipe WALKER 42006 fits 59 70 Jeep CJ5 22L L4
Exhaust Y Pipe WALKER 40376 fits 76 78 Jeep CJ7 50L V8 Exhaust Y Pipe WALKER 40376 fits 76 78 Jeep CJ7 50L V8
$155.99
Buy It Now for only: $155.99
Exhaust Y Pipe WALKER 40376 fits 76 78 Jeep CJ7 50L V8
Exhaust Tail Pipe WALKER 43704 fits 76 81 Jeep CJ5 42L L6 Exhaust Tail Pipe WALKER 43704 fits 76 81 Jeep CJ5 42L L6
$32.99
Buy It Now for only: $32.99
Exhaust Tail Pipe WALKER 43704 fits 76 81 Jeep CJ5 42L L6
1972 79 Jeep CJ 290 401 Long Tube Header Black BPH 2050 1972 79 Jeep CJ 290 401 Long Tube Header Black BPH 2050
$197.99
Buy It Now for only: $197.99
1972 79 Jeep CJ 290 401 Long Tube Header Black BPH 2050
For 2007 2009 Dodge Sprinter 3500 Exhaust Temperature Sensor Dorman 81453CJ For 2007 2009 Dodge Sprinter 3500 Exhaust Temperature Sensor Dorman 81453CJ
$82.96
Buy It Now for only: $82.96
For 2007 2009 Dodge Sprinter 3500 Exhaust Temperature Sensor Dorman 81453CJ
Omix 1745013 Exhaust Flange Gasket Fits CJ5 CJ6 CJ7 Grand Wagoneer Wagoneer Omix 1745013 Exhaust Flange Gasket Fits CJ5 CJ6 CJ7 Grand Wagoneer Wagoneer
$14.47
Buy It Now for only: $14.47
Omix 1745013 Exhaust Flange Gasket Fits CJ5 CJ6 CJ7 Grand Wagoneer Wagoneer
For 2005 2007 Kia Sportage Muffler Center API 25247CJ 2006 27L V6 AWD For 2005 2007 Kia Sportage Muffler Center API 25247CJ 2006 27L V6 AWD
$79.96
Buy It Now for only: $79.96
For 2005 2007 Kia Sportage Muffler Center API 25247CJ 2006 27L V6 AWD
OEM 1966 70 WATER PUMP PULLEY FORD MUSTANG SHELBY COUGAR TORINO 428CJ C6AE 8509A OEM 1966 70 WATER PUMP PULLEY FORD MUSTANG SHELBY COUGAR TORINO 428CJ C6AE 8509A
$65.00
Buy It Now for only: $65.00
OEM 1966 70 WATER PUMP PULLEY FORD MUSTANG SHELBY COUGAR TORINO 428CJ C6AE 8509A
For 2001 2004 Kia Spectra Muffler Rear API 18793CJ 2002 2003 18L 4 Cyl 4dr For 2001 2004 Kia Spectra Muffler Rear API 18793CJ 2002 2003 18L 4 Cyl 4dr
$58.95
Buy It Now for only: $58.95
For 2001 2004 Kia Spectra Muffler Rear API 18793CJ 2002 2003 18L 4 Cyl 4dr
Y Pipe fits 1976 1978 Jeep CJ7 WALKER Y Pipe fits 1976 1978 Jeep CJ7 WALKER
$156.08
Buy It Now for only: $156.08
Y Pipe fits 1976 1978 Jeep CJ7 WALKER
For 1995 1997 Audi A6 Exhaust Mount API 45567CJ 1996 For 1995 1997 Audi A6 Exhaust Mount API 45567CJ 1996
$10.55
Buy It Now for only: $10.55
For 1995 1997 Audi A6 Exhaust Mount API 45567CJ 1996
Catalytic Converter Walker J581CJ for Mitsubishi Mirage 1993 1994 1995 Catalytic Converter Walker J581CJ for Mitsubishi Mirage 1993 1994 1995
$153.91
Buy It Now for only: $153.91
Catalytic Converter Walker J581CJ for Mitsubishi Mirage 1993 1994 1995
Door Hanger Brackets Wall Mounted Storage Rack for Jeep CJ YJ LJ TJ JK JKU JL Door Hanger Brackets Wall Mounted Storage Rack for Jeep CJ YJ LJ TJ JK JKU JL
$26.72
Buy It Now for only: $26.72
Door Hanger Brackets Wall Mounted Storage Rack for Jeep CJ YJ LJ TJ JK JKU JL
For 1983 1986 Jeep CJ7 Exhaust Manifold API 85129ZT 1984 1985 25L 4 Cyl For 1983 1986 Jeep CJ7 Exhaust Manifold API 85129ZT 1984 1985 25L 4 Cyl
$104.95
Buy It Now for only: $104.95
For 1983 1986 Jeep CJ7 Exhaust Manifold API 85129ZT 1984 1985 25L 4 Cyl
FORD OEM 13 18 Escape 20L L4 Muffler CV6Z5230CJ FORD OEM 13 18 Escape 20L L4 Muffler CV6Z5230CJ
$397.57
Buy It Now for only: $397.57
FORD OEM 13 18 Escape 20L L4 Muffler CV6Z5230CJ
For 1990 1993 Volvo 240 Tail Pipe API 14675CJ 1991 1992 23L 4 Cyl For 1990 1993 Volvo 240 Tail Pipe API 14675CJ 1991 1992 23L 4 Cyl
$23.95
Buy It Now for only: $23.95
For 1990 1993 Volvo 240 Tail Pipe API 14675CJ 1991 1992 23L 4 Cyl
Exhaust Manifold M313QJ for Cherokee CJ7 Comanche Scrambler Wagoneer Wrangler Exhaust Manifold M313QJ for Cherokee CJ7 Comanche Scrambler Wagoneer Wrangler
$110.78
Buy It Now for only: $110.78
Exhaust Manifold M313QJ for Cherokee CJ7 Comanche Scrambler Wagoneer Wrangler
For 2017 2018 Mercedes E400 Exhaust Bracket Left Driver Side 24533CJ For 2017 2018 Mercedes E400 Exhaust Bracket Left Driver Side 24533CJ
$29.98
Buy It Now for only: $29.98
For 2017 2018 Mercedes E400 Exhaust Bracket Left Driver Side 24533CJ
For 2001 2010 Volvo V70 Exhaust Mount API 36341CJ 2002 2003 2004 2005 2006 2007 For 2001 2010 Volvo V70 Exhaust Mount API 36341CJ 2002 2003 2004 2005 2006 2007
$12.96
Buy It Now for only: $12.96
For 2001 2010 Volvo V70 Exhaust Mount API 36341CJ 2002 2003 2004 2005 2006 2007
Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7 Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7
$213.95
Buy It Now for only: $213.95
Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7
Muffler Flowmaster Z573SR for Jeep CJ7 1979 1980 1981 Muffler Flowmaster Z573SR for Jeep CJ7 1979 1980 1981
$88.81
Buy It Now for only: $88.81
Muffler Flowmaster Z573SR for Jeep CJ7 1979 1980 1981
Muffler Q544QB for CJ5 CJ7 Grand Cherokee 1979 1980 1981 1982 1983 1984 1985 Muffler Q544QB for CJ5 CJ7 Grand Cherokee 1979 1980 1981 1982 1983 1984 1985
$91.78
Buy It Now for only: $91.78
Muffler Q544QB for CJ5 CJ7 Grand Cherokee 1979 1980 1981 1982 1983 1984 1985
Muffler F879MJ for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986 Muffler F879MJ for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986
$133.81
Buy It Now for only: $133.81
Muffler F879MJ for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986
Muffler X654KR for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986 Muffler X654KR for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986
$97.81
Buy It Now for only: $97.81
Muffler X654KR for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986
Muffler Flowmaster V651PC for Jeep CJ7 1979 1980 1981 Muffler Flowmaster V651PC for Jeep CJ7 1979 1980 1981
$100.77
Buy It Now for only: $100.77
Muffler Flowmaster V651PC for Jeep CJ7 1979 1980 1981
Muffler R311TF for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986 Muffler R311TF for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986
$86.81
Buy It Now for only: $86.81
Muffler R311TF for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986
Muffler J537GJ for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986 Muffler J537GJ for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986
$118.81
Buy It Now for only: $118.81
Muffler J537GJ for Jeep CJ5 CJ7 1979 1980 1981 1982 1983 1984 1985 1986
For 2007 GMC Sierra 3500 Classic Exhaust Manifold Right API 56855CJ 60L V8 For 2007 GMC Sierra 3500 Classic Exhaust Manifold Right API 56855CJ 60L V8
$98.95
Buy It Now for only: $98.95
For 2007 GMC Sierra 3500 Classic Exhaust Manifold Right API 56855CJ 60L V8
For 1986 2012 Nissan Sentra Exhaust Hanger Bosal 39875CJ 1999 2004 2009 2006 For 1986 2012 Nissan Sentra Exhaust Hanger Bosal 39875CJ 1999 2004 2009 2006
$15.96
Buy It Now for only: $15.96
For 1986 2012 Nissan Sentra Exhaust Hanger Bosal 39875CJ 1999 2004 2009 2006
Exhaust Pipe Front OMIX 1761312 fits 76 78 Jeep CJ7 50L V8 Exhaust Pipe Front OMIX 1761312 fits 76 78 Jeep CJ7 50L V8
$357.95
Buy It Now for only: $357.95
Exhaust Pipe Front OMIX 1761312 fits 76 78 Jeep CJ7 50L V8
For 1994 1995 Mercedes E320 Exhaust Mount API 15354CJ 32L 6 Cyl 124092 Wagon For 1994 1995 Mercedes E320 Exhaust Mount API 15354CJ 32L 6 Cyl 124092 Wagon
$11.95
Buy It Now for only: $11.95
For 1994 1995 Mercedes E320 Exhaust Mount API 15354CJ 32L 6 Cyl 124092 Wagon
For 1977 1983 BMW 320i Muffler Hanger Strap 34966CJ 1982 1981 1980 1978 1979 For 1977 1983 BMW 320i Muffler Hanger Strap 34966CJ 1982 1981 1980 1978 1979
$27.95
Buy It Now for only: $27.95
For 1977 1983 BMW 320i Muffler Hanger Strap 34966CJ 1982 1981 1980 1978 1979
For 2002 2005 Hyundai XG350 Muffler Center API 58182CJ 2003 2004 35L V6 For 2002 2005 Hyundai XG350 Muffler Center API 58182CJ 2003 2004 35L V6
$69.96
Buy It Now for only: $69.96
For 2002 2005 Hyundai XG350 Muffler Center API 58182CJ 2003 2004 35L V6
Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7 Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7
$210.69
Buy It Now for only: $210.69
Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7
For 1997 1999 2003 Volkswagen EuroVan Exhaust Hanger Febi 51813CJ 2000 2001 For 1997 1999 2003 Volkswagen EuroVan Exhaust Hanger Febi 51813CJ 2000 2001
$14.96
Buy It Now for only: $14.96
For 1997 1999 2003 Volkswagen EuroVan Exhaust Hanger Febi 51813CJ 2000 2001
Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7 Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7
$244.56
Buy It Now for only: $244.56
Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7
Tail Pipe fits 1982 1986 Jeep CJ7 CJ5 CJ5CJ7 WALKER Tail Pipe fits 1982 1986 Jeep CJ7 CJ5 CJ5CJ7 WALKER
$39.36
Buy It Now for only: $39.36
Tail Pipe fits 1982 1986 Jeep CJ7 CJ5 CJ5CJ7 WALKER
For Jeep CJ5 1972 1979 Crown Steel Natural Exhaust Manifold Kit For Jeep CJ5 1972 1979 Crown Steel Natural Exhaust Manifold Kit
$149.91
Buy It Now for only: $149.91
For Jeep CJ5 1972 1979 Crown Steel Natural Exhaust Manifold Kit
Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7 Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7
$201.08
Buy It Now for only: $201.08
Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7
Exhaust Manifold Cherokee CJ Wagoneer AMC Eagle 25L 4 cyl New w Gasket Exhaust Manifold Cherokee CJ Wagoneer AMC Eagle 25L 4 cyl New w Gasket
$107.89
Buy It Now for only: $107.89
Exhaust Manifold Cherokee CJ Wagoneer AMC Eagle 25L 4 cyl New w Gasket
For 1985 1992 Volvo 740 Muffler Rear API 41624CJ 1986 1987 1988 1989 1990 1991 For 1985 1992 Volvo 740 Muffler Rear API 41624CJ 1986 1987 1988 1989 1990 1991
$51.96
Buy It Now for only: $51.96
For 1985 1992 Volvo 740 Muffler Rear API 41624CJ 1986 1987 1988 1989 1990 1991
Front Pipe fits 1983 1986 Jeep CJ7 WALKER Front Pipe fits 1983 1986 Jeep CJ7 WALKER
$57.64
Buy It Now for only: $57.64
Front Pipe fits 1983 1986 Jeep CJ7 WALKER
For 1985 1992 Volkswagen Golf Exhaust Mount API 21854CJ 1986 1987 1988 1989 1990 For 1985 1992 Volkswagen Golf Exhaust Mount API 21854CJ 1986 1987 1988 1989 1990
$10.95
Buy It Now for only: $10.95
For 1985 1992 Volkswagen Golf Exhaust Mount API 21854CJ 1986 1987 1988 1989 1990
2005 Honda Civic LX 17L L4 GAS SOHC 2005 Honda Civic LX 17L L4 GAS SOHC
$116.45
Buy It Now for only: $116.45
2005 Honda Civic LX 17L L4 GAS SOHC
2007 2008 2009 2010 Jeep Patriot FWD 2007 2008 2009 2010 Jeep Patriot FWD
$128.00
Buy It Now for only: $128.00
2007 2008 2009 2010 Jeep Patriot FWD
For 2007 2010 Audi Q7 Muffler Rear API 82561CJ 2008 2009 42L V8 For 2007 2010 Audi Q7 Muffler Rear API 82561CJ 2008 2009 42L V8
$439.98
Buy It Now for only: $439.98
For 2007 2010 Audi Q7 Muffler Rear API 82561CJ 2008 2009 42L V8
Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7 Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7
$225.09
Buy It Now for only: $225.09
Flowtech 13550FLT Long Tube Headers Fits 72 81 CJ5 CJ6 CJ7
MagnaFlow 339014 2 Inlet 2 Outlet Universal Catalytc Cnvrtr for 84 86 Jeep CJ7 MagnaFlow 339014 2 Inlet 2 Outlet Universal Catalytc Cnvrtr for 84 86 Jeep CJ7
$215.19
Buy It Now for only: $215.19
MagnaFlow 339014 2 Inlet 2 Outlet Universal Catalytc Cnvrtr for 84 86 Jeep CJ7
FLOWTECH 72 82 Jeep CJ Headers 290 401 P N 13550FLT FLOWTECH 72 82 Jeep CJ Headers 290 401 P N 13550FLT
$203.48
Buy It Now for only: $203.48
FLOWTECH 72 82 Jeep CJ Headers 290 401 P N 13550FLT
JBA 6655SJT Long Tube Headers 1967 1970 Mustang 390 427 428 CJ w C6 4spd Stainl JBA 6655SJT Long Tube Headers 1967 1970 Mustang 390 427 428 CJ w C6 4spd Stainl
$795.82
Buy It Now for only: $795.82
JBA 6655SJT Long Tube Headers 1967 1970 Mustang 390 427 428 CJ w C6 4spd Stainl
Pipe Flange Gasket Seal For Jeep Cj5 DC GASKETS 1983 1983 Pipe Flange Gasket Seal For Jeep Cj5 DC GASKETS 1983 1983
$31.67
Buy It Now for only: $31.67
Pipe Flange Gasket Seal For Jeep Cj5 DC GASKETS 1983 1983
Pipe Flange Gasket Seal For Jeep Cj7 DC GASKETS 1986 1982 Pipe Flange Gasket Seal For Jeep Cj7 DC GASKETS 1986 1982
$31.67
Buy It Now for only: $31.67
Pipe Flange Gasket Seal For Jeep Cj7 DC GASKETS 1986 1982
Pipe Flange Gasket Seal For Jeep Cj8 DC GASKETS 1985 1982 Pipe Flange Gasket Seal For Jeep Cj8 DC GASKETS 1985 1982
$31.67
Buy It Now for only: $31.67
Pipe Flange Gasket Seal For Jeep Cj8 DC GASKETS 1985 1982
Pipe Flange Gasket Seal For Jeep Cj7 DC GASKETS 1986 1979 Pipe Flange Gasket Seal For Jeep Cj7 DC GASKETS 1986 1979
$32.20
Buy It Now for only: $32.20
Pipe Flange Gasket Seal For Jeep Cj7 DC GASKETS 1986 1979
Pipe Flange Gasket Seal For Jeep Cj8 DC GASKETS 1985 1980 Pipe Flange Gasket Seal For Jeep Cj8 DC GASKETS 1985 1980
$32.20
Buy It Now for only: $32.20
Pipe Flange Gasket Seal For Jeep Cj8 DC GASKETS 1985 1980
For 2001 2004 Volvo V40 Muffler Rear API 41869CJ 2002 2003 For 2001 2004 Volvo V40 Muffler Rear API 41869CJ 2002 2003
$143.96
Buy It Now for only: $143.96
For 2001 2004 Volvo V40 Muffler Rear API 41869CJ 2002 2003