GMC C25 Headers and Exhaust Parts

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GMC C25

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DEI 10226 Adapt-A-Shield XT - 12" x 17-1/2"

DEI |

#35610226

DEI 10226 Adapt-A-Shield XT - 12" x 17-1/2"

Overall Width:

17.5"

Sold in Quantity:

Each

$24.99

/each

-10%

Borla |

#21540349

Borla® 40349 ProXS™ Muffler, 3 Inch Inlet/2.5 Dual Out

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

2.5"

$187.99

/each

$209.99

-25%

Vibrant |

#32113625

Vibrant 13625 Pie Cuts, 2.5 Inch O.D. 6 Pieces, 15 Degrees Each

Exhaust Tubing Diameter:

2-1/2 Inch

Outside Diameter:

2.50"

$41.50

/each

$55.99

-9%

Doug's Headers |

#447304

Doug's Headers DEC300AK 3" Stainless Electric Exhaust Cutout Kit

(1)

Exhaust Tubing Diameter:

3 Inch

Finish:

Raw

Voltage:

12 volts

$656.66

/each

$722.33

-9%

Patriot Exhaust |

#447H3013

Patriot Exhaust H3013 Muffler Smithy, 22 Inch, 2-1/4 Inch Inlet/Outlet

(2)

Muffler Type:

Glass Pack

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$96.62

/each

$106.28

Exhaust Manifolds VS Headers | How Much HP Do Headers Add

Headers and manifolds differ in design and function. Long tube headers, shorty headers, and exhaust manifolds each have their pros and cons regarding performance and application.

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.

Tuning Tips after Header Installation

Making the switch from manifolds to headers is a popular performance upgrade, but it may take more than just bolting on the new part. We provide some tips and things to consider after you bolt on a new set of headers.

Building Custom 241 Red Ram Driveshaft Headers

In this detailed article, Tim will guide you on how to build a custom set of 241 Red Ram Hemi driveshaft headers. From the concept to the materials needed, he'll show you how the mockup and final assembly steps.

Tri-5 Headers with a Rack and Pinion System

In this Tech Tip, John explains the design behind a set of headers destined for a Tri-5 using a traditional rack and pinion style steering system.

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.

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.

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.

-9%

Patriot Exhaust |

#447H7260

Patriot Exhaust H7260 3-bolt Collector Flange Kits, 3 Inch

(4)

Material Type:

Steel

Sold in Quantity:

Pair

$38.40

/pair

$42.24

Quick-Detach Removable Exhaust Hanger, Steel

(9)

Header Tube Type:

Shorty

Exhaust Port Shape:

Round

Flange Style:

Standard

$389.99

/pair

Baffled Muffler with Cutout, 2.5 Inch Same Side Inlet/Outlet

(1)

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$130.00

/each

$196.64

Hedman Hedders |

#41821101

Hedman Hedders 21101 2-1/2 Inch Steel Header Reducer 2 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt

$33.99

/each

Hedman Hedders |

#41821103

Hedman Hedders 21103 3 Inch Steel Header Reducer 2-1/2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$36.99

/pair

FAST 30169 02/Oxygen 18MM x 1.50 Sensor Plug Fitting, Each

FAST Fuel Air Spark Technology |

#28230169

FAST 30169 02/Oxygen 18MM x 1.50 Sensor Plug Fitting, Each

GTIN Code:

036584133704

$19.95

/each

V-Band Clamp, Exhaust, Turbo, Stainless, 3 Inch

Speedway Motors |

#91013014

V-Band Clamp, Exhaust, Turbo, Stainless, 3 Inch

(2)

Exhaust Clamp Type:

V-Band

Inside Diameter:

$27.99

/each

New Product

Netami NT2525H Stainless Steel Dual H Exhaust Pipe, 2"

NETAMI Exhaust |

#21602530-2.5

Netami NT2525H Stainless Steel Dual H Exhaust Pipe, 2"

(1)

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Stainless

Sold in Quantity:

Each

$49.99

/each

Granatelli Motor Sports |

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$146.00

/each

$221.39

-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 |

#37612259

MagnaFlow 12259 5x8 Inch Oval Center/Offset Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$162.00

/each

$245.87

-34%

MagnaFlow |

#37612265

MagnaFlow 12265 5x8 Inch Oval Offset/Dual Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$182.00

/each

$276.49

$105 Off

MagnaFlow |

#37612388

MagnaFlow 12388 5x8 Inch Oval Center/Dual Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

2.5"

$201.00

/each

$305.94

-34%

MagnaFlow |

#37612279

MagnaFlow 12279 5x8 Inch Oval Center/Center Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

Outlet Diameter:

$185.00

/each

$281.63

-33%

MagnaFlow |

#37610798

MagnaFlow 10798 3 Inch Performance Stainless Straight Y-Pipe

Exhaust Tubing Diameter:

3 Inch

Inlet Diameter:

Outlet Diameter:

$88.00

/each

$132.92

-34%

MagnaFlow |

#37612468

MagnaFlow 12468 5 Inch x 8 Inch Oval Dual/Dual Stainless Muffler

Muffler Type:

Straight-Through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$187.00

/each

$283.98

$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

$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

-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

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GMC C25 Headers and Exhaust Parts

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Part

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Products

DEI 10226 Adapt-A-Shield XT - 12" x 17-1/2"

Borla® 40349 ProXS™ Muffler, 3 Inch Inlet/2.5 Dual Out

Vibrant 13625 Pie Cuts, 2.5 Inch O.D. 6 Pieces, 15 Degrees Each

Doug's Headers DEC300AK 3" Stainless Electric Exhaust Cutout Kit

Patriot Exhaust H3013 Muffler Smithy, 22 Inch, 2-1/4 Inch Inlet/Outlet

Related Articles

Patriot Exhaust H7260 3-bolt Collector Flange Kits, 3 Inch

Quick-Detach Removable Exhaust Hanger, Steel

Granatelli 313531 - 3 Inch Round to 3 Inch Oval Exh Adapter

Flowmaster 942551 50 Series Delta Flow Muffler, 2.50 In/Out

Speedway Ford Flathead V8 Center Dump Headers, AHC

Baffled Muffler with Cutout, 2.5 Inch Same Side Inlet/Outlet

Boom Tube Small Block Chevy Zoomie Headers for Sprint, Raw Finish

Tight-Fit Small Block Chevy Block Hugger Headers, Chrome

Big Block Chevy, Block Hugger, Tight-Fit Headers, AHC Coated

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 2.5-inch

MagnaFlow 11226 4x9 Inch Oval Center/Offset Stainless Muffler

Hedman Hedders 21101 2-1/2 Inch Steel Header Reducer 2 Inch

Hedman Hedders 21103 3 Inch Steel Header Reducer 2-1/2 Inch

FAST 30169 02/Oxygen 18MM x 1.50 Sensor Plug Fitting, Each

V-Band Clamp, Exhaust, Turbo, Stainless, 3 Inch

Netami NT2525H Stainless Steel Dual H Exhaust Pipe, 2"

Granatelli Motor Sports 302300 Oval Exhaust Flange, Stainless, 3"

MagnaFlow 11256 4x9 Inch Oval Center/Offset Stainless Muffler

MagnaFlow 11386 4 Inch x 9 Inch Oval Dual/Dual Stainless Muffler

MagnaFlow 12158 5x8 Inch Oval Center/Dual Stainless Muffler

MagnaFlow 12219 5x8 Inch Oval Center/Center Stainless Muffler

MagnaFlow 12254 5x8 Inch Oval Center/Offset Stainless Muffler

MagnaFlow 12259 5x8 Inch Oval Center/Offset Stainless Muffler

MagnaFlow 12265 5x8 Inch Oval Offset/Dual Stainless Muffler

MagnaFlow 12388 5x8 Inch Oval Center/Dual Stainless Muffler

MagnaFlow 12279 5x8 Inch Oval Center/Center Stainless Muffler

MagnaFlow 10798 3 Inch Performance Stainless Straight Y-Pipe

MagnaFlow 12468 5 Inch x 8 Inch Oval Dual/Dual Stainless Muffler

MagnaFlow 12579 5x11 Inch Oval Center/Center Stainless Muffler

MagnaFlow 12587 5x11 Inch Oval Center/Dual Stainless Muffler

MagnaFlow 10169 3 Inch Performance Exhaust Stainless V-Band Clamp