Flowmaster GMC 1000 Headers and Exhaust Parts

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GMC 1000

Products

-11%

Flowmaster |

#378943048

Flowmaster 943048 Offset Inlet/Outlet 3 In Muffler Super 44

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$137.95

/each

$155.95

-11%

Flowmaster |

#3788425810

Flowmaster 8425810 2.5 in In/Out Muffler Super 10 Series

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$170.95

/each

$192.95

-11%

Flowmaster |

#378953045

Flowmaster 953045 3 In/Out Muffler Super 40 Series Delta Flow

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$149.95

/each

$168.95

-11%

Flowmaster |

#378530722

Flowmaster 530722 3 In/Out Muffler 70 Series Big Block II

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

2.25"

$249.95

/each

$281.95

-11%

Flowmaster |

#3788425154

Flowmaster 8425154 2.5 In/Out Muffler Super 10 Series

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$101.95

/each

$114.95

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.

Exhaust Repair

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

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.

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.

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 10-Bolt Polished Finned Aluminum Rear End Cover Installation Guide

Steve provides a step-by-step guide to install the Speedway Motors GM 10-Bolt Polished Finned Aluminum Rear End Cover.

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.

-8%

Flowmaster |

#37815369

Flowmaster 15369 2.5 in Inlet Exhaust Tip

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Polished

$108.95

/each

$118.95

-6%

Flowmaster |

#378815932

Flowmaster 815932 2.5 in X-Pipe Scavenger

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Raw

$449.95

/kit

$481.95

Flowmaster |

#37815150S

Flowmaster 15150S 2.5 In/Out Exhaust Resonator

GTIN Code:

700042024827

$124.95

/kit

-9%

Flowmaster |

#3788425152

Flowmaster 8425152 2.5 In/ 2.25 Out Muffler Super 10 Series

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.25"

$101.95

/each

$112.95

-11%

Flowmaster |

#3789425400

Flowmaster 9425400 2.5 In/Out Muffler 40 Series Delta Flow

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$149.95

/each

$168.95

Flowmaster |

#3789430412

Flowmaster 9430412 3 In/ 2.5 Out Muffler 40 Series Delta Flow

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

2.5"

$145.95

/each

-11%

Flowmaster |

#378943042

Flowmaster 943042 3 In/Out Muffler 40 Series Delta Flow

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$149.95

/each

$168.95

-11%

Flowmaster |

#3789525454

Flowmaster 9525454 2.5 In/Out Muffler Super 40 Series Delta Flow

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$173.95

/each

$195.95

-7%

Flowmaster |

#37815361

Flowmaster 15361 Exhaust Tip, 2.5 in. Inlet, 12 in. Long

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Polished

$92.19

/each

$99.95

-6%

Flowmaster |

#37815935

Flowmaster 15935 Dual Universal 2-1/4 in Exhaust Kit U-Fit

Exhaust System Type:

Header-Back

Single or Dual:

Dual

Exhaust Tubing Diameter:

2-1/4 Inch

$699.95

/each

$749.95

-9%

Flowmaster |

#378425403

Flowmaster 425403 2.5 Dual In 3 Center Out Muffler 40 Series

(1)

Inlet Diameter:

2.5"

Outlet Diameter:

$101.95

/each

$112.95

-11%

Flowmaster |

#378952446

Flowmaster 952446 Offset In-Center Out 2-1/4 Muffler Super 40

Muffler Type:

Chambered

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$152.95

/each

$172.95

-11%

Flowmaster |

#3788530552

Flowmaster 8530552 Stainless 3 In/ 2.5 Out Muffler 50 Series

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

2.5"

$224.95

/each

$253.95

-11%

Flowmaster |

#378942552

Flowmaster 942552 2.5 In/Out Muffler 50 Series Delta Flow

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$173.95

/each

$195.95

-11%

Flowmaster |

#378942551

Flowmaster 942551 2.5 In/Out Muffler 50 Series Delta Flow

(2)

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$173.95

/each

$195.95

-8%

Flowmaster |

#37815377B

Flowmaster 15377B 3 in Inlet 7 in Exhaust Tip

Exhaust Tubing Diameter:

3 Inch

Finish:

Ceramic Coated

$119.95

/each

$130.95

-7%

Flowmaster |

#378MB130048

Flowmaster MB130048 3 in O.D x 48 in Exhaust Pipe

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

3.00"

$96.89

/each

$104.95

-8%

Flowmaster |

#37815396B

Flowmaster 15396B 4 in Black Ceramic Fits 2.5 in Exhaust Tip

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Ceramic Coated

$133.95

/each

$145.95

-8%

Flowmaster |

#378Y250300

Flowmaster Y250300 2.5 Pri / 3 Col Y-Pipe Collector

Hardware Included:

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Aluminized

$124.95

/each

$136.95

-7%

Flowmaster |

#37815930FM

Flowmaster 15930FM 3 In to 3 In Ball Flange Collector Kit

GTIN Code:

700042018659

$207.95

/each

$224.95

-7%

Flowmaster |

#378854040-10

Flowmaster 854040-10 4 In/Out Race Muffler 40 Series Delta Force

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$278.95

/each

$302.95

-8%

Flowmaster |

#37815929

Flowmaster 15929 Universal 4 in 4-Piece Tailpipe Kit

Outside Diameter:

4.00"

Exhaust Tubing Diameter:

4 Inch

Finish:

Aluminized

$249.95

/kit

$273.95

-11%

Flowmaster |

#378942544

Flowmaster 942544 2.5 In/Out Muffler 40 Series Delta Flow

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$149.95

/each

$168.95

Flowmaster |

#37852580

Flowmaster 52580 2.5 In/Out Muffler 80 Series Crossflow

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$114.95

/each

-7%

Flowmaster |

#378815936

Flowmaster 815936 2.5 in Dia. Exhaust Kit

Exhaust System Type:

Header-Back

Single or Dual:

Dual

Exhaust Tubing Diameter:

2-1/2 Inch

$584.95

/kit

$633.95

-11%

Flowmaster |

#3789425472

Flowmaster 9425472 2.5 In/Out Muffler Super 44 Series

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$137.95

/each

$155.95

-9%

Flowmaster |

#378325108

Flowmaster 325108 2.5 In/Out Muffler 10 Series Delta Force

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$149.95

/each

$165.95

-11%

Flowmaster |

#378953046

Flowmaster 953046 3 in Offset In-Center Out Muffler Super 40

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$149.95

/each

$168.95

-9%

Flowmaster |

#37842541

Flowmaster 42541 2-1/2 in Offset In/Center Out Muffler 40 Series

(1)

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$101.95

/each

$112.95

-11%

Flowmaster |

#378943052

Flowmaster 943052 3 In/Out Muffler 50 Series Delta Flow

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$173.95

/each

$195.95

-7%

Flowmaster |

#378815937

Flowmaster 815937 Dual Universal 3 in Exhaust Kit U-Fit

Exhaust System Type:

Header-Back

Single or Dual:

Dual

Exhaust Tubing Diameter:

3 Inch

$623.95

/kit

$674.95

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Flowmaster GMC 1000 Headers and Exhaust Parts

Year

Subcategory

Part

Brand

Product Line

Availability

Discounts

Price

Customer Rating

Products

Flowmaster 943048 Offset Inlet/Outlet 3 In Muffler Super 44

Flowmaster 8425810 2.5 in In/Out Muffler Super 10 Series

Flowmaster 953045 3 In/Out Muffler Super 40 Series Delta Flow

Flowmaster 530722 3 In/Out Muffler 70 Series Big Block II

Flowmaster 8425154 2.5 In/Out Muffler Super 10 Series

Related Articles

Flowmaster 15369 2.5 in Inlet Exhaust Tip

Flowmaster 815932 2.5 in X-Pipe Scavenger

Flowmaster 15150S 2.5 In/Out Exhaust Resonator

Flowmaster 8425152 2.5 In/ 2.25 Out Muffler Super 10 Series

Flowmaster 9425400 2.5 In/Out Muffler 40 Series Delta Flow

Flowmaster 9430412 3 In/ 2.5 Out Muffler 40 Series Delta Flow

Flowmaster 943042 3 In/Out Muffler 40 Series Delta Flow

Flowmaster 9525454 2.5 In/Out Muffler Super 40 Series Delta Flow

Flowmaster 15361 Exhaust Tip, 2.5 in. Inlet, 12 in. Long

Flowmaster 15935 Dual Universal 2-1/4 in Exhaust Kit U-Fit

Flowmaster 425403 2.5 Dual In 3 Center Out Muffler 40 Series

Flowmaster 952446 Offset In-Center Out 2-1/4 Muffler Super 40

Flowmaster 8530552 Stainless 3 In/ 2.5 Out Muffler 50 Series

Flowmaster 942552 2.5 In/Out Muffler 50 Series Delta Flow

Flowmaster 942551 2.5 In/Out Muffler 50 Series Delta Flow

Flowmaster 15377B 3 in Inlet 7 in Exhaust Tip

Flowmaster MB130048 3 in O.D x 48 in Exhaust Pipe

Flowmaster 15396B 4 in Black Ceramic Fits 2.5 in Exhaust Tip

Flowmaster Y250300 2.5 Pri / 3 Col Y-Pipe Collector

Flowmaster 15930FM 3 In to 3 In Ball Flange Collector Kit

Flowmaster 854040-10 4 In/Out Race Muffler 40 Series Delta Force

Flowmaster 15929 Universal 4 in 4-Piece Tailpipe Kit

Flowmaster 942544 2.5 In/Out Muffler 40 Series Delta Flow

Flowmaster 52580 2.5 In/Out Muffler 80 Series Crossflow

Flowmaster 815936 2.5 in Dia. Exhaust Kit

Flowmaster 9425472 2.5 In/Out Muffler Super 44 Series

Flowmaster 325108 2.5 In/Out Muffler 10 Series Delta Force

Flowmaster 953046 3 in Offset In-Center Out Muffler Super 40

Flowmaster 42541 2-1/2 in Offset In/Center Out Muffler 40 Series

Flowmaster 943052 3 In/Out Muffler 50 Series Delta Flow

Flowmaster 815937 Dual Universal 3 in Exhaust Kit U-Fit