1978 GMC C15 Headers and Exhaust Parts

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1978 GMC C15

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1978 GMC C15

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Hedman Hedders |

#41821116

Hedman Hedders 21116 2-1/2 Inch Ball-Style Header Reducer 2 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt Ball and Socket

$25.12

/each

Hedman Hedders |

#41821130

Hedman Hedders 21130 Exhaust Manifold Riser, 3 Inch

Sold in Quantity:

Kit

GTIN Code:

732611211307

$63.62

/kit

Hedman Hedders |

#41821134

Hedman Hedders 21134 3 Inch Ball-Style Header Reducer 3 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt Ball and Socket

$25.57

/each

$161 Off

MagnaFlow |

#37612595

MagnaFlow 12595 5x11 Inch Oval Center/Dual Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

3.5"

Outlet Diameter:

$309.00

/each

$470.37

-34%

MagnaFlow |

#37612634

MagnaFlow 12634 6x6 Inch Round Offset/Offset Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$123.00

/each

$187.28

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.

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.

New Sheet Metal, Bodywork and Paint | 1968 C10 Build Episode 7

Now that our '68 C10 cab is straight and rust-free, it's time to bolt on the rest of the sheet metal, get it straight, and get it painted!

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.

-34%

MagnaFlow |

#37612865

MagnaFlow 12865 5x5 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$144.00

/each

$218.82

-34%

MagnaFlow |

#37612867

MagnaFlow 12867 5x5 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$161.00

/each

$245.39

$104 Off

MagnaFlow |

#37614148

MagnaFlow 14148 5x8 Inch Oval Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$199.00

/each

$303.23

-34%

MagnaFlow |

#37614226

MagnaFlow 14226 5x8 Inch Oval Center/Offset Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$166.00

/each

$251.92

$104 Off

MagnaFlow |

#37614263

MagnaFlow 14263 5x8 Inch Oval Offset/Offset Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$198.00

/each

$301.75

$121 Off

MagnaFlow |

#37614266

MagnaFlow 14266 5x8 Inch Oval Offset/Dual Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.25"

$234.00

/each

$355.18

-34%

MagnaFlow |

#37614325

MagnaFlow 14325 4x9 Inch Oval Center/Offset Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$164.00

/each

$249.63

-34%

MagnaFlow |

#37610435

MagnaFlow 10435 4x4 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$132.00

/each

$200.08

-34%

MagnaFlow |

#37610445

MagnaFlow 10445 4x4 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$129.00

/each

$196.22

-33%

MagnaFlow |

#37611114

MagnaFlow 11114 3.5x7 Inch Oval Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$145.00

/each

$219.48

-34%

MagnaFlow |

#37611148

MagnaFlow 11148 3.5x7 Inch Oval Center/Dual Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.25"

Outlet Diameter:

$185.00

/each

$280.97

Hedman Hedders |

#41829000

Hedman Hedders 29000 1-1/2 Inch 90 Degree, 2 Inch Exhaust Pipe

Exhaust Tubing Diameter:

1-1/2 Inch

Exhaust Pipe Type:

Custom Tubing

$19.49

/each

Hedman Hedders |

#41829040

Hedman Hedders 29040 3 Inch 180 Degree 4-1/2 Inch Exhaust Pipe

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Custom Tubing

$30.99

/each

Hedman Hedders |

#41829020

Hedman Hedders 29020 2 Inch 120 Degree 3 Inch Exhaust Pipe

Exhaust Tubing Diameter:

2 Inch

Exhaust Pipe Type:

Custom Tubing

$22.99

/each

-34%

MagnaFlow |

#37635121

MagnaFlow 35121 Stainless 4 Inch Round Polished Exhaust Tip

Exhaust Tubing Diameter:

2-1/4 Inch

Finish:

Polished

$131.00

/each

$198.75

-34%

MagnaFlow |

#37614335

MagnaFlow 14335 4x9 Inch Oval Offset/Offset Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$164.00

/each

$249.63

-34%

MagnaFlow |

#37614416

MagnaFlow 14416 4x4 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$126.00

/each

$191.54

-11%

Flowtech 11704-2FLT SB Chevy Rams Horn Exhaust Manifold, Chrome Finish

Flowtech Exhaust |

#425117042FLT

Flowtech 11704-2FLT SB Chevy Rams Horn Exhaust Manifold, Chrome Finish

Finish:

Chrome

Sold in Quantity:

Pair

$562.95

/set

$633.95

Welded Two Chamber Muffler, 3 Inch Offset In/Center Out w/ Shield

Speedway Motors |

#9101458

Welded Two Chamber Muffler, 3 Inch Offset In/Center Out w/ Shield

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$119.99

/kit

Dynatech |

#31178381245

Dynatech® 783-81245 Slip-On Collector, 2-3/8 x 4-1/2 x 12

(3)

Overall Length:

12"

Sold in Quantity:

Each

$99.99

/each

-33%

MagnaFlow |

#37635117

MagnaFlow 35117 Stainless 4 Inch Round Polished Exhaust Tip

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Polished

$88.00

/each

$133.20

DEi Titanium Exhaust Wrap and Locking Tie Kit, 1 x 50

DEI |

#91605040

DEi Titanium Exhaust Wrap and Locking Tie Kit, 1 x 50

(2)

Overall Width:

Material Type:

Lava Rock

Sold in Quantity:

Kit

$56.99

/kit

DEi Titanium Exhaust Wrap and Locking Tie Kit, 2 x 50

DEI |

#91605051

DEi Titanium Exhaust Wrap and Locking Tie Kit, 2 x 50

(3)

Overall Width:

Material Type:

Lava Rock

Sold in Quantity:

Kit

$76.99

/kit

-33%

MagnaFlow |

#37611375

MagnaFlow 11375 4x9 Inch Oval Offset/Offset Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$130.00

/each

$196.64

$559 Off

Flowtech 11702-2FLT SB Chevy Lakester Header, 1-5/8 Inch Primaries

Flowtech Exhaust |

#425117022FLT

Flowtech 11702-2FLT SB Chevy Lakester Header, 1-5/8 Inch Primaries

Header Tube Type:

Lake Style

Flange Style:

Standard

Primary Tube Diameter:

1-5/8"

$535.61

/each

$1,094.95

Dynatech |

#31178970350

Dynatech® 789-70350 Stepped Band Tube Clamp, 3-1/2 Inch

(2)

Exhaust Clamp Type:

Tube

Inside Diameter:

3.5"

$44.99

/each

-20%

Vibrant |

#32111106

Vibrant 1106 Streetpower 20" Stainless Steel Universal Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$149.99

/each

$187.99

Hedman Hedders |

#41821110

Hedman Hedders 21110 3 Inch Header Reducers 2-1/2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$45.48

/pair

Vibrant |

#3212624

Vibrant 2624 180 Degree Mandrel Bend, 2 Inch, Stainless Steel

Exhaust Tubing Diameter:

2 Inch

Outside Diameter:

2.00"

$48.99

/each

Dynatech |

#31177614352

Dynatech® 776-14352 Oval Split Flow Mufflers, 3-1/2"

(1)

Inlet Diameter:

3.5"

Outlet Diameter:

3.5"

$151.99

/each

-12%

Porter Muffler |

#9105022

Porter Muffler PM4022514 Short Muffler, 2.25 Inch Inlet/Outlet

(4)

Muffler Type:

Straight-Through

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$111.99

/each

$127.95

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1978 GMC C15 Headers and Exhaust Parts

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Part

Brand

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Products

Hedman Hedders 21116 2-1/2 Inch Ball-Style Header Reducer 2 Inch

Hedman Hedders 21130 Exhaust Manifold Riser, 3 Inch

Hedman Hedders 21134 3 Inch Ball-Style Header Reducer 3 Inch

MagnaFlow 12595 5x11 Inch Oval Center/Dual Stainless Muffler

MagnaFlow 12634 6x6 Inch Round Offset/Offset Stainless Muffler

Related Articles

MagnaFlow 12865 5x5 Inch Round Center/Center Stainless Muffler

MagnaFlow 12867 5x5 Inch Round Center/Center Stainless Muffler

MagnaFlow 14148 5x8 Inch Oval Center/Center Stainless Muffler

MagnaFlow 14226 5x8 Inch Oval Center/Offset Stainless Muffler

MagnaFlow 14263 5x8 Inch Oval Offset/Offset Stainless Muffler

MagnaFlow 14266 5x8 Inch Oval Offset/Dual Stainless Muffler

MagnaFlow 14325 4x9 Inch Oval Center/Offset Stainless Muffler

MagnaFlow 10435 4x4 Inch Round Center/Center Stainless Muffler

MagnaFlow 10445 4x4 Inch Round Center/Center Stainless Muffler

MagnaFlow 11114 3.5x7 Inch Oval Center/Center Stainless Muffler

MagnaFlow 11148 3.5x7 Inch Oval Center/Dual Stainless Muffler

Hedman Hedders 29000 1-1/2 Inch 90 Degree, 2 Inch Exhaust Pipe

Hedman Hedders 29040 3 Inch 180 Degree 4-1/2 Inch Exhaust Pipe

Hedman Hedders 29020 2 Inch 120 Degree 3 Inch Exhaust Pipe

MagnaFlow 35121 Stainless 4 Inch Round Polished Exhaust Tip

MagnaFlow 14335 4x9 Inch Oval Offset/Offset Stainless Muffler

MagnaFlow 14416 4x4 Inch Round Center/Center Stainless Muffler

Flowtech 11704-2FLT SB Chevy Rams Horn Exhaust Manifold, Chrome Finish

Welded Two Chamber Muffler, 3 Inch Offset In/Center Out w/ Shield

Dynatech® 783-81245 Slip-On Collector, 2-3/8 x 4-1/2 x 12

MagnaFlow 35117 Stainless 4 Inch Round Polished Exhaust Tip

DEi Titanium Exhaust Wrap and Locking Tie Kit, 1 x 50

DEi Titanium Exhaust Wrap and Locking Tie Kit, 2 x 50

MagnaFlow 11375 4x9 Inch Oval Offset/Offset Stainless Muffler

Flowtech 11702-2FLT SB Chevy Lakester Header, 1-5/8 Inch Primaries

Dynatech® 789-70350 Stepped Band Tube Clamp, 3-1/2 Inch

Vibrant 1106 Streetpower 20" Stainless Steel Universal Muffler

Hedman Hedders 21110 3 Inch Header Reducers 2-1/2 Inch

Vibrant 2624 180 Degree Mandrel Bend, 2 Inch, Stainless Steel

Dynatech® 776-14352 Oval Split Flow Mufflers, 3-1/2"

Porter Muffler PM4022514 Short Muffler, 2.25 Inch Inlet/Outlet