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Welcome to Source One Auto Parts!

Welcome to Source One Auto Parts!

Exhaust Components

Browse New OEM exhaust manifolds, catalytic converters, and exhaust hardware for GM vehicles. Our factory-original exhaust components are sourced from GM surplus — the correct port configuration, flange geometry, and heat shield mounting for your specific engine and chassis.

Exhaust manifold cracking and catalytic converter failure are common failure modes, particularly on high-mileage vehicles. OEM replacement components provide the correct exhaust flow characteristics and emissions performance specified by GM engineering — maintaining fuel economy and emissions compliance.

Verify part numbers against your engine RPO code and emissions certification level before ordering. Catalytic converter replacement may require oxygen sensor transfer from the original unit.

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Catalytic Converter for 2013-15 Chevy Cruze 1.8L w/o Flex Fuel w/o PZEV 94529347-1
$355.19 - $355.19
$355.19
$355.19 - $355.19
$355.19

Catalytic Converter for 2013-15 Chevy Cruze 1.8L w/o Flex Fuel w/o PZEV 94529347

Only 2 left!

Catalytic Converter, 1.8L Without Flex Fuel, Without PZEV. Does not include bracket or hangers/insulators. Description: Catalytic Converter,...

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SKU: 1610712B

$355.19 - $355.19
$355.19
$355.19 - $355.19
$355.19
Catalytic Converter for 2013-15 Chevy Cruze 1.8L w/Federal Emissions 94529348-1
$366.29 - $366.29
$366.29
$366.29 - $366.29
$366.29

Catalytic Converter for 2013-15 Chevy Cruze 1.8L w/Federal Emissions 94529348

in stock

Catalytic Converter, With Federal Emissions Standards, Does Not Include Bracket or Hangers/Insulators Description: Catalytic Converter, With...

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SKU: 1610711B

$366.29 - $366.29
$366.29
$366.29 - $366.29
$366.29
New OEM GM Catalytic Converter 2019 Cadillac CT6 2.0L 55495048-1
$665.96 - $665.96
$665.96
$665.96 - $665.96
$665.96

New OEM GM Catalytic Converter 2019 Cadillac CT6 2.0L 55495048

Only 2 left!

Catalytic Converter Description: Catalytic Converter Part Number: 55495048 Condition: New OEM, Generic Packaging Other Info: No Core C...

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SKU: 2110026

$665.96 - $665.96
$665.96
$665.96 - $665.96
$665.96
Intermediate Exhaust Y Pipe 2019 Chevy Corvette LT5 With M5U 8L90 84505415-1
$1,054.46 - $1,054.46
$1,054.46
$1,054.46 - $1,054.46
$1,054.46

Intermediate Exhaust Y Pipe 2019 Chevy Corvette LT5 With M5U 8L90 84505415

Only 2 left!

Intermediate Exhaust Assembly, "Y Pipe", For 2019 Chevrolet Corvette With LT5 Engine and M5U 8L90 (8 Speed Automatic) Transmission Descripti...

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SKU: 2110024

$1,054.46 - $1,054.46
$1,054.46
$1,054.46 - $1,054.46
$1,054.46
Catalytic Converter With Exhaust Pipe Right 2014-19 Cadillac CTS Vsport 12669580-1
$786.39 - $786.39
$786.39
$786.39 - $786.39
$786.39

Catalytic Converter With Exhaust Pipe Right 2014-19 Cadillac CTS Vsport 12669580

Only 2 left!

Warm-Up 3-Way Catalytic Converter With Exhaust Pipe, Right Hand (Passenger's Side) Description: Warm-Up 3-Way Catalytic Converter With Exhau...

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SKU: 2020146

$786.39 - $786.39
$786.39
$786.39 - $786.39
$786.39
Catalytic Converter With Exhaust Pipe Left 2014-19 Cadillac CTS Vsport 12669579-1
$786.39 - $786.39
$786.39
$786.39 - $786.39
$786.39

Catalytic Converter With Exhaust Pipe Left 2014-19 Cadillac CTS Vsport 12669579

Only 2 left!

Warm-Up 3-Way Catalytic Converter With Exhaust Pipe, Left Hand (Driver's Side) Description: Warm-Up 3-Way Catalytic Converter With Exhaust P...

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SKU: 2020145

$786.39 - $786.39
$786.39
$786.39 - $786.39
$786.39
Exhaust Front Pipe Assembly 2016-18 Chevrolet Cruze LE2 1.4L Manual 39133449-1
$235.89 - $235.89
$235.89
$235.89 - $235.89
$235.89

Exhaust Front Pipe Assembly 2016-18 Chevrolet Cruze LE2 1.4L Manual 39133449

in stock

Exhaust Front Pipe Description: Exhaust Front Pipe Part Number: 39133449, 39171259 Condition: New OEM, Generic Packaging Other Info: LE2 En...

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SKU: 1980156

$235.89 - $235.89
$235.89
$235.89 - $235.89
$235.89
New OEM GM Exhaust Clamp 2013-22 Encore 14-19 ATS CTS 16-24 Camaro 22860193-1
$57.98 - $57.98
$57.98
$57.98 - $57.98
$57.98

New OEM GM Exhaust Clamp 2013-22 Encore 14-19 ATS CTS 16-24 Camaro 22860193

in stock

Exhaust Clamp Description: Exhaust Clamp Part Number: 22860193 Condition: New OEM, Generic Packaging Other Info: Check compatibility for sp...

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SKU: 1930098

$57.98 - $57.98
$57.98
$57.98 - $57.98
$57.98
New OEM GM Exhaust Pipe Clamp 2017-18 Silverado Sierra 6.6L 12683493-1
$24.96 - $24.96
$24.96
$24.96 - $24.96
$24.96

New OEM GM Exhaust Pipe Clamp 2017-18 Silverado Sierra 6.6L 12683493

in stock

Exhaust Pipe Clamp Description: Exhaust Pipe Clamp Part Number: 12683493, 12674775 Condition: New OEM, Generic Packaging Other Info: ...

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SKU: 1920119

$24.96 - $24.96
$24.96
$24.96 - $24.96
$24.96
Exhaust/Tailpipe Insulator 2-Pack Solstice Sky SC SL Grand Prix Impala 10304424-1
$12.20 - $12.20
$12.20
$12.20 - $12.20
$12.20

Exhaust/Tailpipe Insulator 2-Pack Solstice Sky SC SL Grand Prix Impala 10304424

in stock

Exhaust/Tailpipe Insulator (2-Pack) Description: Exhaust/Tailpipe Insulator (2-Pack) Part Number: 10304424, 21011418, 21013430 Condition...

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SKU: 1740035

$12.20 - $12.20
$12.20
$12.20 - $12.20
$12.20
OEM GM Lower Catalytic Converter 2016 Chevy Cruze 1.4L 12641120-1
$549.44 - $549.44
$549.44
$549.44 - $549.44
$549.44

OEM GM Lower Catalytic Converter 2016 Chevy Cruze 1.4L 12641120

in stock

Lower Catalytic Converter Description: Lower Catalytic Converter Part Number: 13478031, 12641120 Condition: New OEM, Cut From Complete E...

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SKU: 1690078

$549.44 - $549.44
$549.44
$549.44 - $549.44
$549.44
Catalytic Converter 2011-15 Chevy Cruze 1.8L w/o Flex Fuel w/PZEV 94529346-1
$499.49 - $499.49
$499.49
$499.49 - $499.49
$499.49

Catalytic Converter 2011-15 Chevy Cruze 1.8L w/o Flex Fuel w/PZEV 94529346

in stock

California Emissions Catalytic Converter, 1.8L With PZEV, Without Flex Fuel (RPO Code NU6) Description: California Emissions Catalytic Conve...

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SKU: 1610713

$499.49 - $499.49
$499.49
$499.49 - $499.49
$499.49
Catalytic Converter 2013-15 Chevy Cruze 1.8L w/o Flex Fuel w/o PZEV 94529347-1
$443.99 - $443.99
$443.99
$443.99 - $443.99
$443.99

Catalytic Converter 2013-15 Chevy Cruze 1.8L w/o Flex Fuel w/o PZEV 94529347

in stock

Catalytic Converter, 1.8L Without Flex Fuel, Without PZEV Description: Catalytic Converter, 1.8L Without Flex Fuel, Without PZEV Part Numb...

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SKU: 1610712

$443.99 - $443.99
$443.99
$443.99 - $443.99
$443.99
Catalytic Converter 2013-15 Chevy Cruze 1.8L w/Federal Emissions 94529348-1
$477.29 - $477.29
$477.29
$477.29 - $477.29
$477.29

Catalytic Converter 2013-15 Chevy Cruze 1.8L w/Federal Emissions 94529348

in stock

Catalytic Converter, With Federal Emissions Standards Description: Catalytic Converter, With Federal Emissions Standards Part Number: 9452...

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SKU: 1610711

$477.29 - $477.29
$477.29
$477.29 - $477.29
$477.29
Exhaust Manifold Left 2000-11 Cadillac Pontiac Buick 4.6L Northstar V8 12578360-1
$48.80 - $48.80
$48.80
$48.80 - $48.80
$48.80

Exhaust Manifold Left 2000-11 Cadillac Pontiac Buick 4.6L Northstar V8 12578360

Only 1 left!

Left Exhaust Manifold Description: Left Exhaust Manifold Part Number: 12578360 Condition: New OEM, Generic Packaging Other Info: 4.6L ...

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SKU: 1010865

$48.80 - $48.80
$48.80
$48.80 - $48.80
$48.80
OEM GM Polished Exhaust Tip Right RH 2007-09 Saturn Sky 10399724-1
$21.97 - $21.97
$21.97
$21.97 - $21.97
$21.97

OEM GM Polished Exhaust Tip Right RH 2007-09 Saturn Sky 10399724

Only 5 left!

Right Hand (Single) Polished Exhaust Tip Description: Right Hand (Single) Polished Exhaust Tip Part Number: 10399724 Condition: New OEM,...

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SKU: 1002558

$21.97 - $21.97
$21.97
$21.97 - $21.97
$21.97

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