1981 GMC G2500 Headers and Exhaust Parts

1,857 products fit your

1981 GMC G2500

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1981 GMC G2500

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-9%

Patriot Exhaust |

#447H7261

Patriot Exhaust H7261 3-bolt Collector Flange Kits, 3-1/2 Inch

Material Type:

Steel

Sold in Quantity:

Pair

$43.88

/pair

$48.27

-9%

Patriot Exhaust |

#447H7624

Patriot Exhaust H7624 Slip Connector, 1-3/4 Inch

Exhaust Tubing Diameter:

1-3/4 Inch

Overall Length:

Inlet Diameter:

1.75"

$13.14

/each

$14.45

-33%

MagnaFlow |

#37614419

MagnaFlow 14419 4x4 Inch Round Center/Center Stainless Muffler

(1)

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$136.00

/each

$205.80

-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

-33%

MagnaFlow |

#37635148

MagnaFlow 35148 Stainless 5 Inch Round Polished Exhaust Tip

Exhaust Tubing Diameter:

4 Inch

Finish:

Polished

$121.00

/each

$183.12

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.

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.

Exhaust Repair

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

Speedway Tech Talk - Derby Car Headers

Jeremy explains the different options of headers that Speedway Motors offers for Demolition Derby cars. Watch this video to see a variety of options and the benefits of certain headers.

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.

Rebuilding Junkyard SBC Vortec Cylinder Heads

Learn how to re-build a junkyard Small Block Chevy. A step-by-step guide on how to select a SBC, machine the valve guide bosses down, and what parts to use to upgrade to your personal liking.

-34%

MagnaFlow |

#37614714

MagnaFlow 14714 7x7 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$156.00

/each

$236.86

$109 Off

MagnaFlow |

#37614821

MagnaFlow 14821 6x6 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.25"

Outlet Diameter:

4.5"

$208.00

/each

$316.99

$109 Off

MagnaFlow |

#37614156

MagnaFlow 14156 4x4 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$209.00

/each

$318.38

$120 Off

MagnaFlow |

#37614163

MagnaFlow 14163 6x6 Inch Round Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$231.00

/each

$350.91

-9%

Patriot Exhaust |

#447H7716

Patriot Exhaust H7716 Tubing, Stainless Steel, 3 Inch, 18 Gauge

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

3.00"

$87.82

/each

$96.60

AutoMeter |

#182P30312

AutoMeter P30312 Boost, 2 1/16 Inch, 35PSI, White/Black, Spek

Overall Diameter:

2.36"

Body Diameter:

2.06"

Gauge Type:

Electric

$286.99

/each

AutoMeter |

#182P304218

AutoMeter P304218 Boost, 2 1/16 Inch, 60PSI, Silver/Chrome, Spek

Overall Diameter:

2.36"

Body Diameter:

2.06"

Gauge Type:

Electric

$261.99

/each

AutoMeter |

#182P302218

AutoMeter P302218 Vac/Boost, 2 1/16 Inch, Silver/Chrome, Spek

Overall Diameter:

2.36"

Body Diameter:

2.06"

Gauge Type:

Electric

$262.99

/each

AutoMeter |

#182P30252

AutoMeter P30252 Spek-Pro Boost/Vacuum Gauge, 2-1/16,37 PSI,Domed

Overall Diameter:

2.36"

Body Diameter:

2.06"

Gauge Type:

Electric

$261.99

/each

AutoMeter |

#182P304128

AutoMeter P304128 Boost, 2 1/16 Inch, 60PSI, White/Black, Spek

Overall Diameter:

2.36"

Body Diameter:

2.06"

Gauge Type:

Electric

$286.99

/each

AutoMeter |

#182P30412

AutoMeter P30412 Boost, 2 1/16 Inch, 60PSI, White/Black, Spek

Overall Diameter:

2.36"

Body Diameter:

2.06"

Gauge Type:

Electric

$286.99

/each

AutoMeter |

#182P30431

AutoMeter P30431 Boost, 2 1/16 Inch, 60PSI, Black/Chrome, Spek

Overall Diameter:

2.36"

Body Diameter:

2.06"

Gauge Type:

Electric

$258.99

/each

-9%

Patriot Exhaust |

#447H7712

Patriot Exhaust H7712 Tubing, Stainless Steel, 2-3/8 Inch, 18 Gauge

Exhaust Tubing Diameter:

2-3/8 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.38"

$153.70

/each

$169.07

-9%

Patriot Exhaust |

#447H7715

Patriot Exhaust H7715 Tubing, Stainless Steel, 2-1/2 Inch, 16 Gauge

Exhaust Tubing Diameter:

2-1/2 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.50"

$142.73

/each

$157.00

-9%

Patriot Exhaust |

#447H7174

Patriot Exhaust H7174 U-Clamp, 1-3/4 Inch

(1)

Exhaust Clamp Type:

Saddle/U-Bolt

Inside Diameter:

1.75"

$10.97

/each

$12.07

-9%

Patriot Exhaust |

#447H6905

Patriot Exhaust H6905 304 Stainless Steel Exhaust Pipe, 1-5/8"

Exhaust Tubing Diameter:

1-5/8 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.625"

$49.37

/each

$54.31

-9%

Patriot Exhaust |

#447H6907

Patriot Exhaust H6907 304 Stainless Stee Exhaust Pipe, 1-5/8 Inch

Exhaust Tubing Diameter:

1-5/8 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.625"

$60.39

/each

$66.43

-9%

Patriot Exhaust |

#447H6908

Patriot Exhaust H6908 304 Stainless Steel Exhaust Pipe, 1-3/4"

Exhaust Tubing Diameter:

1-3/4 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.75"

$65.88

/each

$72.47

-9%

Patriot Exhaust |

#447H6956

Patriot Exhaust H6956 J Bend Exhaust Tubing, 16 Gauge, 2 Inch

Exhaust Tubing Diameter:

2 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.00"

$39.49

/each

$43.44

-9%

Patriot Exhaust |

#447H7002

Patriot Exhaust H7002 J Bend Exhaust Tubing, 18 Gauge, 1-5/8 Inch

Exhaust Tubing Diameter:

1-5/8 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.625"

$43.88

/each

$48.27

-9%

Patriot Exhaust |

#447H7024

Patriot Exhaust H7024 18 Gauge Exhaust Pipe, 1-3/4 Inch

Exhaust Tubing Diameter:

1-3/4 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.75"

$32.91

/each

$36.20

-9%

Patriot Exhaust |

#447H7029

Patriot Exhaust H7029 18 Gauge Exhaust Pipe, 1-7/8 Inch

Exhaust Tubing Diameter:

1-7/8 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.88"

$38.40

/each

$42.24

-9%

Patriot Exhaust |

#447H7042

Patriot Exhaust H7042 16 Gauge Exhaust Pipe, 2 Inch

Exhaust Tubing Diameter:

2 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.00"

$54.86

/each

$60.35

-9%

Patriot Exhaust |

#447H7070

Patriot Exhaust H7070 16 Gauge Exhaust Pipe 120 Degree Bends, 3 Inch

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

3.00"

$60.39

/each

$66.43

-9%

Patriot Exhaust |

#447H7032

Patriot Exhaust H7032 J-Bend Exhaust Tubing, 16 gauge, 1-7/8 Inch

Exhaust Tubing Diameter:

1-7/8 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.88"

$49.37

/each

$54.31

-9%

Patriot Exhaust |

#447H7268

Patriot Exhaust H7268 Collector Flange kit, 3 Bolt, 3 Inch

Material Type:

Steel

Sold in Quantity:

Pair

$60.39

/pair

$66.43

-9%

Patriot Exhaust |

#447H7659

Patriot Exhaust H7659 2-1 Formed Collector, 1-5/8x2x6-1/2 Inch

Material Type:

Steel

Sold in Quantity:

Each

$43.88

/each

$48.27

-9%

Patriot Exhaust |

#447H7044

Patriot Exhaust H7044 16 Gauge Exhaust Pipe, 2-1/8 Inch

(2)

Exhaust Tubing Diameter:

2-1/8 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.13"

$49.37

/each

$54.31

-9%

JBA 12-08216 Angle Cut Chrome Plated Exhaust Tip

JBA Headers |

#4471208216

JBA 12-08216 Angle Cut Chrome Plated Exhaust Tip

Exhaust Tubing Diameter:

4 Inch

Finish:

Chrome

$87.15

/each

$95.87

-9%

JBA 12-08204 Rolled SS Chrome Plated Exhaust Tip

JBA Headers |

#4471208204

JBA 12-08204 Rolled SS Chrome Plated Exhaust Tip

Exhaust Tubing Diameter:

3 Inch

Finish:

Chrome

$52.68

/each

$57.95

-9%

JBA 12-08206 Rolled SS Chrome Plated Exhaust Tip

JBA Headers |

#4471208206

JBA 12-08206 Rolled SS Chrome Plated Exhaust Tip

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Chrome

$52.11

/each

$57.32

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1981 GMC G2500 Headers and Exhaust Parts

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Products

Patriot Exhaust H7261 3-bolt Collector Flange Kits, 3-1/2 Inch

Patriot Exhaust H7624 Slip Connector, 1-3/4 Inch

MagnaFlow 14419 4x4 Inch Round Center/Center Stainless Muffler

MagnaFlow 14416 4x4 Inch Round Center/Center Stainless Muffler

MagnaFlow 35148 Stainless 5 Inch Round Polished Exhaust Tip

Related Articles

MagnaFlow 14714 7x7 Inch Round Center/Center Stainless Muffler

MagnaFlow 14821 6x6 Inch Round Center/Center Stainless Muffler

MagnaFlow 14156 4x4 Inch Round Center/Center Stainless Muffler

MagnaFlow 14163 6x6 Inch Round Center/Center Stainless Muffler

Patriot Exhaust H7716 Tubing, Stainless Steel, 3 Inch, 18 Gauge

AutoMeter P30312 Boost, 2 1/16 Inch, 35PSI, White/Black, Spek

AutoMeter P304218 Boost, 2 1/16 Inch, 60PSI, Silver/Chrome, Spek

AutoMeter P302218 Vac/Boost, 2 1/16 Inch, Silver/Chrome, Spek

AutoMeter P30252 Spek-Pro Boost/Vacuum Gauge, 2-1/16,37 PSI,Domed

AutoMeter P304128 Boost, 2 1/16 Inch, 60PSI, White/Black, Spek

AutoMeter P30412 Boost, 2 1/16 Inch, 60PSI, White/Black, Spek

AutoMeter P30431 Boost, 2 1/16 Inch, 60PSI, Black/Chrome, Spek

Patriot Exhaust H7712 Tubing, Stainless Steel, 2-3/8 Inch, 18 Gauge

Patriot Exhaust H7715 Tubing, Stainless Steel, 2-1/2 Inch, 16 Gauge

Patriot Exhaust H7174 U-Clamp, 1-3/4 Inch

Patriot Exhaust H6905 304 Stainless Steel Exhaust Pipe, 1-5/8"

Patriot Exhaust H6907 304 Stainless Stee Exhaust Pipe, 1-5/8 Inch

Patriot Exhaust H6908 304 Stainless Steel Exhaust Pipe, 1-3/4"

Patriot Exhaust H6956 J Bend Exhaust Tubing, 16 Gauge, 2 Inch

Patriot Exhaust H7002 J Bend Exhaust Tubing, 18 Gauge, 1-5/8 Inch

Patriot Exhaust H7024 18 Gauge Exhaust Pipe, 1-3/4 Inch

Patriot Exhaust H7029 18 Gauge Exhaust Pipe, 1-7/8 Inch

Patriot Exhaust H7042 16 Gauge Exhaust Pipe, 2 Inch

Patriot Exhaust H7070 16 Gauge Exhaust Pipe 120 Degree Bends, 3 Inch

Patriot Exhaust H7032 J-Bend Exhaust Tubing, 16 gauge, 1-7/8 Inch

Patriot Exhaust H7268 Collector Flange kit, 3 Bolt, 3 Inch

Patriot Exhaust H7659 2-1 Formed Collector, 1-5/8x2x6-1/2 Inch

Patriot Exhaust H7044 16 Gauge Exhaust Pipe, 2-1/8 Inch

JBA 12-08216 Angle Cut Chrome Plated Exhaust Tip

JBA 12-08204 Rolled SS Chrome Plated Exhaust Tip

JBA 12-08206 Rolled SS Chrome Plated Exhaust Tip