1981 GMC K2500 Headers and Exhaust Parts

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1981 GMC K2500

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1981 GMC K2500

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$439 Off

MagnaFlow |

#37610720

MagnaFlow 10720 2.5 Inch 90 Degree Bend Exhaust Pipe, 10 Pack

Exhaust Tubing Diameter:

2-1/2 Inch

Exhaust Pipe Type:

Elbow/Connector

Outside Diameter:

2.50"

$838.00

/each

$1,276.79

$702 Off

MagnaFlow |

#37610760

MagnaFlow 10760 2.25 Inch 3 in 1 Performance Exhaust Pipe

Exhaust Tubing Diameter:

2-1/4 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.25"

$1,341.00

/each

$2,042.72

-33%

MagnaFlow |

#37610167

MagnaFlow 10167 5 Inch Performance Exhaust Stainless V-Band Clamp

Exhaust Clamp Type:

Band

Inside Diameter:

$134.00

/set

$202.80

-34%

MagnaFlow |

#37610169

MagnaFlow 10169 3 Inch Performance Exhaust Stainless V-Band Clamp

Exhaust Clamp Type:

V-Band

Inside Diameter:

$101.00

/each

$153.36

$420 Off

MagnaFlow |

#37610701

MagnaFlow 10701 2.25 Inch Stainless Custom Builder Exhaust System

Exhaust System Type:

Header-Back

Single or Dual:

Dual

Exhaust Tubing Diameter:

2-1/4 Inch

$802.00

/each

$1,222.01

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.

-33%

MagnaFlow |

#37610706

MagnaFlow 10706 2.5 In 90 Degree Bend Performance Exhaust Pipe

Exhaust Tubing Diameter:

2-1/2 Inch

Exhaust Pipe Type:

Elbow/Connector

Outside Diameter:

2.50"

$93.00

/each

$140.40

$728 Off

MagnaFlow |

#37610723

MagnaFlow 10723 3 Inch 180 Degree Bend Exhaust Pipe, 10 Pack

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

3.00"

$1,391.00

/each

$2,119.47

$518 Off

MagnaFlow |

#37610725

MagnaFlow 10725 3 Inch 45 Degree Bend Exhaust Pipe, 10 Pack

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Elbow/Connector

Outside Diameter:

3.00"

$989.00

/each

$1,506.64

-33%

MagnaFlow |

#37610731

MagnaFlow 10731 2.5 Inch Performance Exhaust Stainless U-Pipe

Exhaust Tubing Diameter:

2-1/2 Inch

Exhaust Pipe Type:

Elbow/Connector

$101.00

/each

$152.96

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

United Pacific |

#92637092

United Pacific C2003 Chevy Bowtie Exhaust Deflector

Material Type:

Stainless Steel

Sold in Quantity:

Each

$23.99

/each

-16%

BBK 31015 Varitune Adjustable Muffler Double Offset, Stainless

BBK Performance |

#58531015

BBK 31015 Varitune Adjustable Muffler Double Offset, Stainless

Muffler Type:

Multi-Chamber

Sold in Quantity:

Each

$149.99

/each

$179.99

Intellitronix |

#188M9011B

Intellitronix M9011B LED Digital Boost, Blue

Gauge Style:

Digital

Gauge Range:

0-30 PSI

Gauge Face Color:

Black

$115.63

/each

-34%

MagnaFlow |

#37612254

MagnaFlow 12254 5x8 Inch Oval Center/Offset Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$146.00

/each

$221.39

-34%

MagnaFlow |

#37612276

MagnaFlow 12276 5x8 Inch Oval Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$174.00

/each

$264.35

$123 Off

MagnaFlow |

#37612579

MagnaFlow 12579 5x11 Inch Oval Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$236.00

/each

$359.49

-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

$120 Off

MagnaFlow |

#37612763

MagnaFlow 12763 7x7 Inch Round Center/Dual Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

2.5"

$230.00

/each

$350.03

-34%

MagnaFlow |

#37635114

MagnaFlow 35114 Stainless 3.5 Inch Round Polished Exhaust Tip

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Polished

$84.00

/each

$127.70

-34%

MagnaFlow |

#37635181

MagnaFlow 35181 Stainless 4 Inch Turndown Polished Exhaust Tip

Exhaust Tubing Diameter:

4 Inch

Finish:

Polished

$133.00

/each

$202.10

$110 Off

MagnaFlow |

#37635188

MagnaFlow 35188 Stainless 5 Inch Turndown Polished Exhaust Tip

Exhaust Tubing Diameter:

4 Inch

Finish:

Polished

$212.00

/each

$321.97

$877 Off

MagnaFlow |

#37610762

MagnaFlow 10762 3 Inch 3 in 1 Performance Exhaust Stainless Pipe

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

3.00"

$1,676.00

/set

$2,553.44

$101 Off

MagnaFlow |

#37610784

MagnaFlow 10784 2.5 Inch Performance Exhaust Stainless Cutout

Exhaust Tubing Diameter:

2-1/2 Inch

Sold in Quantity:

Each

$194.00

/each

$294.73

-34%

MagnaFlow |

#37635236

MagnaFlow 35236 Stainless 4 Inch Round Black Coated Exhaust Tip

Exhaust Tubing Diameter:

3 Inch

Finish:

Powder Coated

$170.00

/each

$257.97

$173 Off

MagnaFlow |

#37635229

MagnaFlow 35229 Stainless 3 Inch Round Polished Exhaust Tip

Exhaust Tubing Diameter:

2-1/4 Inch

Finish:

Polished

$332.00

/each

$504.65

-34%

MagnaFlow |

#37635232

MagnaFlow 35232 Stainless 4.5 Inch Round Polished Exhaust Tip

Exhaust Tubing Diameter:

3-1/2 Inch

Finish:

Polished

$152.00

/each

$231.00

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1981 GMC K2500 Headers and Exhaust Parts

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Products

MagnaFlow 10720 2.5 Inch 90 Degree Bend Exhaust Pipe, 10 Pack

MagnaFlow 10760 2.25 Inch 3 in 1 Performance Exhaust Pipe

MagnaFlow 10167 5 Inch Performance Exhaust Stainless V-Band Clamp

MagnaFlow 10169 3 Inch Performance Exhaust Stainless V-Band Clamp

MagnaFlow 10701 2.25 Inch Stainless Custom Builder Exhaust System

Related Articles

MagnaFlow 10706 2.5 In 90 Degree Bend Performance Exhaust Pipe

MagnaFlow 10723 3 Inch 180 Degree Bend Exhaust Pipe, 10 Pack

MagnaFlow 10725 3 Inch 45 Degree Bend Exhaust Pipe, 10 Pack

MagnaFlow 10731 2.5 Inch Performance Exhaust Stainless U-Pipe

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

United Pacific C2003 Chevy Bowtie Exhaust Deflector

BBK 31015 Varitune Adjustable Muffler Double Offset, Stainless

Intellitronix M9011B LED Digital Boost, Blue

MagnaFlow 12254 5x8 Inch Oval Center/Offset Stainless Muffler

MagnaFlow 12276 5x8 Inch Oval Center/Center Stainless Muffler

MagnaFlow 12579 5x11 Inch Oval Center/Center Stainless Muffler

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

MagnaFlow 12763 7x7 Inch Round Center/Dual Stainless Muffler

MagnaFlow 35114 Stainless 3.5 Inch Round Polished Exhaust Tip

MagnaFlow 35181 Stainless 4 Inch Turndown Polished Exhaust Tip

MagnaFlow 35188 Stainless 5 Inch Turndown Polished Exhaust Tip

MagnaFlow 10762 3 Inch 3 in 1 Performance Exhaust Stainless Pipe

MagnaFlow 10784 2.5 Inch Performance Exhaust Stainless Cutout

MagnaFlow 35236 Stainless 4 Inch Round Black Coated Exhaust Tip

MagnaFlow 35229 Stainless 3 Inch Round Polished Exhaust Tip

MagnaFlow 35232 Stainless 4.5 Inch Round Polished Exhaust Tip