1977 GMC C15 Headers and Exhaust Parts

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1977 GMC C15

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1977 GMC C15

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Hedman Hedders |

#41829049

Hedman Hedders 29049 1-3/4 Inch 120 Degree 3 Inch Exhaust Pipe

Exhaust Tubing Diameter:

1-3/4 Inch

Exhaust Pipe Type:

Custom Tubing

$54.99

/each

Hedman Hedders |

#41829058

Hedman Hedders 29058 2-1/2 Inch 120 Degree 4 Inch Exhaust Pipe

Exhaust Tubing Diameter:

2-1/2 Inch

Exhaust Pipe Type:

Custom Tubing

$70.99

/each

Hedman Hedders |

#41829066

Hedman Hedders 29066 2-1/4 Inch 90 Degree 4 Inch Exhaust Pipe

Exhaust Tubing Diameter:

2-1/4 Inch

Exhaust Pipe Type:

Custom Tubing

$25.99

/each

Hedman Hedders |

#41829070

Hedman Hedders 29070 2-1/2 Inch 120 Degree 4 Inch Exhaust Pipe

Exhaust Tubing Diameter:

2-1/2 Inch

Exhaust Pipe Type:

Custom Tubing

$34.99

/each

Hedman Hedders |

#41821109

Hedman Hedders 21109 2-1/2 Inch Header Reducers 2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$42.59

/pair

Exhaust System Header Wrapping

Whether you’re looking for performance improvements or heat reduction, if you decide to wrap your headers, we'll show you the benefits and possible precautions to take before you wrap your exhaust.

Hooker Header Installation Guide

Hooker headers are installed in a 1967 Pontiac Firebird for increased power and a boost in performance. See how to work through fitment of the steering box, clutch Z bar and starter.

Ceramic Coated Headers

Watch our video on the ceramic coating process for Armor Hot Coating. Headers coated with Armor Hot Coating protect your car without sacrificing looks.

Exhaust Repair

Some basic info on the various exhaust options carried by Speedway Motors.

Speedway Roadster Headers for a 305 Trike

In this Tech Tip, a customer asked about using a set of Small Block Chevy Sprint Roadster headers for his trike, powered by a stock 305.

Replacing GM Rear End Spherical Bushings

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

GM Body Styles

Need a little help Identifying GM Body Styles 1964-1972? Click Here!

C10 Rear Drop Springs Installation

Read how to install rear drop spring to lower a 1969 C10 pickup. Follow these steps for a smooth installation.

Centering a 525 Steering Gear

Steve takes us along as he centers the 525 manual steering gear he is using for his Laguna.

Hedman Hedders |

#41821150

Hedman Hedders 21150 Exhaust Manifold Riser, 3 Inch

Sold in Quantity:

Each

GTIN Code:

732611211505

$59.33

/each

Hedman 22105 2-1/2 Inch Stainless Steel Header Reducers, Pair

Hedman Hedders |

#41822105

Hedman 22105 2-1/2 Inch Stainless Steel Header Reducers, Pair

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$178.99

/pair

Hedman Hedders |

#41822123

Hedman Hedders 22123 2-1/2 Inch Ball-Style Header Reducers 2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt Ball and Socket

$172.92

/pair

Hedman Hedders |

#41822124

Hedman Hedders 22124 2-1/2 Inch Ball-Style Header Reducer 2 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt Ball and Socket

$93.62

/each

Hedman Hedders |

#41825560

Hedman Hedders 25560 Muffler Turbo Muffler 2 Inch

Muffler Type:

Turbo

Inlet Diameter:

Outlet Diameter:

$97.26

/each

Hedman Hedders |

#41818718

Hedman Hedders 18718 Header X-Tensions 3 Inch In, 3 Inch Out

Exhaust Tubing Diameter:

3 Inch

Finish:

Raw

Tube Length:

23"

$68.99

/pair

Hedman Hedders |

#41818803

Hedman Hedders 18803 Gasket-Style Header X-Tensions 2-1/4 Inch

Exhaust Tubing Diameter:

2-1/4 Inch

Finish:

Raw

Tube Length:

17"

$50.56

/pair

Hedman Hedders |

#41821104

Hedman Hedders 21104 3-1/2 Inch Steel Header Reducer 2-1/2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$38.99

/pair

Hedman Hedders |

#41821107

Hedman Hedders 21107 3 Inch Header Reducer w/O2 Bung 2-1/4 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt

$30.12

/each

Flowmaster |

#37815150S

Flowmaster 15150S Resonator, 2.50 In/Out

GTIN Code:

700042024827

$124.95

/kit

Hedman Hedders |

#41821119

Hedman Hedders 21119 3 Inch Ball-Style Header Reducers 3 Inch

(1)

Sold in Quantity:

Pair

Flange Style:

3-Bolt Ball and Socket

$38.99

/pair

Intellitronix |

#188M9011B

Intellitronix M9011B LED Digital Boost, Blue

Gauge Style:

Digital

Gauge Range:

0-30 PSI

Gauge Face Color:

Black

$115.63

/each

Intellitronix |

#188C9017G

Intellitronix C9017G LED Digital EGT Gauge, Green

Gauge Face Color:

Black

Bezel Finish:

Black

Lighted:

Yes

$214.48

/each

Intellitronix |

#188C9017R

Intellitronix C9017R LED Digital EGT Gauge, Red

Gauge Face Color:

Black

Bezel Finish:

Black

Lighted:

Yes

$214.48

/each

Intellitronix |

#188CS9017B

Intellitronix CS9017B LED Digital EGT Gauge, Blue

Gauge Face Color:

Black

Bezel Finish:

Chrome

Lighted:

Yes

$221.21

/each

Intellitronix |

#188CS9017G

Intellitronix CS9017G LED Digital EGT Gauge, Green

Gauge Face Color:

Black

Bezel Finish:

Chrome

Lighted:

Yes

$221.21

/each

APR TPK0004 Slash-Cut Tips, Single-Wall, 4 In, Pol. Silver, Pair

APR |

#425TPK0004

APR TPK0004 Slash-Cut Tips, Single-Wall, 4 In, Pol. Silver, Pair

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Polished

$89.95

/pair

APR EXH0171 Y Splitter, 70mm/2.75In To Dual 63.5mm/2.5In, Cast SS

APR |

#425EXH0171

APR EXH0171 Y Splitter, 70mm/2.75In To Dual 63.5mm/2.5In, Cast SS

Hardware Included:

Exhaust Tubing Diameter:

2-3/4 Inch

Finish:

Raw

$49.95

/each

Vibrant |

#32112326

Vibrant 12326 Black Dual Muffler, Straight Stainless Steel Tips

Muffler Type:

Perforated Tube w/Packing

Inlet Diameter:

$279.99

/each

APR MUH0010 Premium Sound Absorption Muffler, Dual 8.66x6.65x8.31

APR |

#425MUH0010

APR MUH0010 Premium Sound Absorption Muffler, Dual 8.66x6.65x8.31

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$214.95

/each

APR EXH0101 Y Splitter, 76mm/3 In To Quad 63.5mm/2.5 In, Cast SS

APR |

#425EXH0101

APR EXH0101 Y Splitter, 76mm/3 In To Quad 63.5mm/2.5 In, Cast SS

Hardware Included:

Exhaust Tubing Diameter:

3 Inch

Finish:

Raw

$104.95

/each

APR EXH0146 Double Y Splitter 76mm/3 In To Quad 63.5mm/2.5 In, SS

APR |

#425EXH0146

APR EXH0146 Double Y Splitter 76mm/3 In To Quad 63.5mm/2.5 In, SS

Hardware Included:

Exhaust Tubing Diameter:

3 Inch

Finish:

Raw

$172.95

/each

United Pacific |

#92637092

United Pacific C2003 Chevy Bowtie Exhaust Deflector

Material Type:

Stainless Steel

Sold in Quantity:

Each

$23.99

/each

-34%

MagnaFlow |

#37612770

MagnaFlow 12770 7x7 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$173.00

/each

$262.23

$112 Off

MagnaFlow |

#37612773

MagnaFlow 12773 7x7 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$216.00

/each

$327.98

$118 Off

MagnaFlow |

#37612776

MagnaFlow 12776 7x7 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$226.00

/each

$343.76

-34%

MagnaFlow |

#37612866

MagnaFlow 12866 5x5 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$151.00

/each

$229.77

-34%

MagnaFlow |

#37612641

MagnaFlow 12641 6x6 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$189.00

/each

$287.41

-34%

MagnaFlow |

#37612649

MagnaFlow 12649 6x6 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$162.00

/each

$245.87

$111 Off

MagnaFlow |

#37612587

MagnaFlow 12587 5x11 Inch Oval Center/Dual Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

3.5"

Outlet Diameter:

2.5"

$214.00

/each

$324.76

-33%

MagnaFlow |

#37612635

MagnaFlow 12635 6x6 Inch Round Offset/Offset Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$130.00

/each

$196.64

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1977 GMC C15 Headers and Exhaust Parts

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Products

Hedman Hedders 29049 1-3/4 Inch 120 Degree 3 Inch Exhaust Pipe

Hedman Hedders 29058 2-1/2 Inch 120 Degree 4 Inch Exhaust Pipe

Hedman Hedders 29066 2-1/4 Inch 90 Degree 4 Inch Exhaust Pipe

Hedman Hedders 29070 2-1/2 Inch 120 Degree 4 Inch Exhaust Pipe

Hedman Hedders 21109 2-1/2 Inch Header Reducers 2 Inch

Related Articles

Hedman Hedders 21150 Exhaust Manifold Riser, 3 Inch

Hedman 22105 2-1/2 Inch Stainless Steel Header Reducers, Pair

Hedman Hedders 22123 2-1/2 Inch Ball-Style Header Reducers 2 Inch

Hedman Hedders 22124 2-1/2 Inch Ball-Style Header Reducer 2 Inch

Hedman Hedders 25560 Muffler Turbo Muffler 2 Inch

Hedman Hedders 18718 Header X-Tensions 3 Inch In, 3 Inch Out

Hedman Hedders 18803 Gasket-Style Header X-Tensions 2-1/4 Inch

Hedman Hedders 21104 3-1/2 Inch Steel Header Reducer 2-1/2 Inch

Hedman Hedders 21107 3 Inch Header Reducer w/O2 Bung 2-1/4 Inch

Flowmaster 15150S Resonator, 2.50 In/Out

Hedman Hedders 21119 3 Inch Ball-Style Header Reducers 3 Inch

Intellitronix M9011B LED Digital Boost, Blue

Intellitronix C9017G LED Digital EGT Gauge, Green

Intellitronix C9017R LED Digital EGT Gauge, Red

Intellitronix CS9017B LED Digital EGT Gauge, Blue

Intellitronix CS9017G LED Digital EGT Gauge, Green

APR TPK0004 Slash-Cut Tips, Single-Wall, 4 In, Pol. Silver, Pair

APR EXH0171 Y Splitter, 70mm/2.75In To Dual 63.5mm/2.5In, Cast SS

Vibrant 12326 Black Dual Muffler, Straight Stainless Steel Tips

APR MUH0010 Premium Sound Absorption Muffler, Dual 8.66x6.65x8.31

APR EXH0101 Y Splitter, 76mm/3 In To Quad 63.5mm/2.5 In, Cast SS

APR EXH0146 Double Y Splitter 76mm/3 In To Quad 63.5mm/2.5 In, SS

United Pacific C2003 Chevy Bowtie Exhaust Deflector

MagnaFlow 12770 7x7 Inch Round Center/Center Stainless Muffler

MagnaFlow 12773 7x7 Inch Round Center/Center Stainless Muffler

MagnaFlow 12776 7x7 Inch Round Center/Center Stainless Muffler

MagnaFlow 12866 5x5 Inch Round Center/Center Stainless Muffler

MagnaFlow 12641 6x6 Inch Round Center/Center Stainless Muffler

MagnaFlow 12649 6x6 Inch Round Center/Center Stainless Muffler

MagnaFlow 12587 5x11 Inch Oval Center/Dual Stainless Muffler

MagnaFlow 12635 6x6 Inch Round Offset/Offset Stainless Muffler