Flowtech Exhaust GMC K2500 Headers

Get an exact fit for your

GMC K2500

Year

Choose Year

Year

Make

GMC

Make

Model

K2500

Model

Select Header Tube Type

All

Turbo

Block Hugger

Shorty

Long Tube

Lake Style

23 products

Sort By:

Clear All

Fitment

GMC K2500

Products

-7%

Flowtech 91837FLT Shorty Headers, 1998-00 GM Pickup/SUV, 5.7L, Painted

Flowtech Exhaust |

#42591837FLT

Flowtech 91837FLT Shorty Headers, 1998-00 GM Pickup/SUV, 5.7L, Painted

Header Tube Type:

Shorty

Exhaust Port Shape:

Round

Flange Style:

Standard

$559.95

/each

$606.95

-7%

Flowtech 91832FLT Shorty Headers, 1996-99 GM Pickup/SUV, 5.7L/350

Flowtech Exhaust |

#42591832FLT

Flowtech 91832FLT Shorty Headers, 1996-99 GM Pickup/SUV, 5.7L/350

Header Tube Type:

Shorty

Exhaust Port Shape:

Round

Flange Style:

Standard

$371.95

/each

$402.95

-7%

Flowtech 91830FLT Shorty Headers, Black Painted

Flowtech Exhaust |

#42591830FLT

Flowtech 91830FLT Shorty Headers, Black Painted

Header Tube Type:

Shorty

Flange Style:

Round Port

Primary Tube Diameter:

1-1/2"

$363.95

/each

$393.95

$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

$142 Off

Flowtech 11000FLT Universal Block Hugger Header, 1.625 Inch Tube Size

Flowtech Exhaust |

#42511000FLT

Flowtech 11000FLT Universal Block Hugger Header, 1.625 Inch Tube Size

Header Tube Type:

Block Hugger

Exhaust Port Shape:

Round

Flange Style:

Standard

$213.95

/each

$355.95

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.

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.

$155 Off

Flowtech 12167FLT Small Block Ford Turbo Headers, Natural 304

Flowtech Exhaust |

#42512167FLT

Flowtech 12167FLT Small Block Ford Turbo Headers, Natural 304

Header Tube Type:

Turbo

Flange Style:

Standard

Primary Tube Diameter:

1-7/8"

$227.95

/pair

$382.95

-7%

Flowtech 12164FLT Small Block Ford Turbo Headers, Natural 304

Flowtech Exhaust |

#42512164FLT

Flowtech 12164FLT Small Block Ford Turbo Headers, Natural 304

(1)

Header Tube Type:

Turbo

Exhaust Port Shape:

Square

Flange Style:

Standard

$311.95

/pair

$337.95

-7%

Flowtech 11575FLT Shorty Headers, GM LS Universal, Natural

Flowtech Exhaust |

#42511575FLT

Flowtech 11575FLT Shorty Headers, GM LS Universal, Natural

(5)

Header Tube Type:

Shorty

Exhaust Port Shape:

Round

Flange Style:

Standard

$311.95

/each

$337.95

-7%

Flowtech 12152FLT Coyote Turbo Headers, Natural 304 Stainless

Flowtech Exhaust |

#42512152FLT

Flowtech 12152FLT Coyote Turbo Headers, Natural 304 Stainless

Header Tube Type:

Turbo

Flange Style:

Standard

Primary Tube Diameter:

1-5/8"

$415.95

/pair

$449.95

$187 Off

Flowtech 12165FLT Small Block Ford Turbo Headers, Polished 304

Flowtech Exhaust |

#42512165FLT

Flowtech 12165FLT Small Block Ford Turbo Headers, Polished 304

Header Tube Type:

Turbo

Exhaust Port Shape:

Square

Flange Style:

Standard

$292.95

/pair

$479.95

-11%

Flowtech 11706FLT Tight Fit Block Hugger Header, Black Paint

Flowtech Exhaust |

#42511706FLT

Flowtech 11706FLT Tight Fit Block Hugger Header, Black Paint

(1)

Header Tube Type:

Block Hugger

Exhaust Port Shape:

Round

Flange Style:

Standard

$393.95

/set

$443.95

-7%

Flowtech 11569FLT Small Block Chevy Turbo Headers

Flowtech Exhaust |

#42511569FLT

Flowtech 11569FLT Small Block Chevy Turbo Headers

Header Tube Type:

Turbo

Primary Tube Diameter:

1-3/4"

Material Type:

Stainless Steel

$478.95

/kit

$518.95

-6%

Flowtech 11030FLT Universal B/B Chevy Hugger Header, 1.75 In

Flowtech Exhaust |

#42511030FLT

Flowtech 11030FLT Universal B/B Chevy Hugger Header, 1.75 In

Header Tube Type:

Block Hugger

Exhaust Port Shape:

Round

Flange Style:

Standard

$349.95

/each

$373.95

-11%

Flowtech 32166FLT Small Block Ford Turbo Headers, Ceramic Coated

Flowtech Exhaust |

#42532166FLT

Flowtech 32166FLT Small Block Ford Turbo Headers, Ceramic Coated

Header Tube Type:

Turbo

Flange Style:

Standard

Primary Tube Diameter:

1-3/4"

$473.95

/pair

$533.95

-11%

Flowtech 11706-1FLT Tight Fit Block Hugger Header, Silver Metallic

Flowtech Exhaust |

#425117061FLT

Flowtech 11706-1FLT Tight Fit Block Hugger Header, Silver Metallic

Header Tube Type:

Block Hugger

Flange Style:

Standard

Primary Tube Diameter:

1-5/8"

$562.95

/each

$633.95

-7%

Flowtech 12168FLT Small Block Ford Turbo Headers, Polished 304

Flowtech Exhaust |

#42512168FLT

Flowtech 12168FLT Small Block Ford Turbo Headers, Polished 304

Header Tube Type:

Turbo

Flange Style:

Standard

Primary Tube Diameter:

1-7/8"

$415.95

/pair

$449.95

-11%

Flowtech 12153FLT Coyote Turbo Headers, Polished 304 Stainless

Flowtech Exhaust |

#42512153FLT

Flowtech 12153FLT Coyote Turbo Headers, Polished 304 Stainless

Header Tube Type:

Turbo

Flange Style:

Standard

Primary Tube Diameter:

1-5/8"

$511.95

/pair

$575.95

-7%

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

Flowtech Exhaust |

#42511576FLT

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

(6)

Header Tube Type:

Shorty

Exhaust Port Shape:

Round

Flange Style:

Standard

$328.95

/each

$356.95

-7%

Flowtech 11705-7FLT Block Hugger Header, SB Chevy, Stainless Steel

Flowtech Exhaust |

#425117057FLT

Flowtech 11705-7FLT Block Hugger Header, SB Chevy, Stainless Steel

Header Tube Type:

Block Hugger

Exhaust Port Shape:

Oval

Flange Style:

Standard

$561.95

/each

$608.95

$253 Off

Flowtech 31506FLT Long Tube Header, Ceramic Coated

Flowtech Exhaust |

#42531506FLT

Flowtech 31506FLT Long Tube Header, Ceramic Coated

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$380.95

/each

$633.95

-7%

Flowtech 11506FLT Long Tube Header, 1.625 Inch Tube Size

Flowtech Exhaust |

#42511506FLT

Flowtech 11506FLT Long Tube Header, 1.625 Inch Tube Size

(1)

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$265.95

/set

$287.95

-8%

Flowtech 11500FLT, Long Tube Header, 3 Inch Collector Size

Flowtech Exhaust |

#42511500FLT

Flowtech 11500FLT, Long Tube Header, 3 Inch Collector Size

(22)

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$249.95

/set

$273.95

-7%

Flowtech 31500FLT, Long Tube Header, Ceramic Coated

Flowtech Exhaust |

#42531500FLT

Flowtech 31500FLT, Long Tube Header, Ceramic Coated

(2)

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$531.95

/set

$575.95

Showing all 23 results

Shop Feedback:

Did you find what you are looking for?

Flowtech Exhaust GMC K2500 Headers

Year

Header Tube Type

Brand

Product Line

Availability

Discounts

Engine Family

Price

Customer Rating

Products

Flowtech 91837FLT Shorty Headers, 1998-00 GM Pickup/SUV, 5.7L, Painted

Flowtech 91832FLT Shorty Headers, 1996-99 GM Pickup/SUV, 5.7L/350

Flowtech 91830FLT Shorty Headers, Black Painted

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

Flowtech 11000FLT Universal Block Hugger Header, 1.625 Inch Tube Size

Related Articles

Flowtech 12167FLT Small Block Ford Turbo Headers, Natural 304

Flowtech 12164FLT Small Block Ford Turbo Headers, Natural 304

Flowtech 11575FLT Shorty Headers, GM LS Universal, Natural

Flowtech 12152FLT Coyote Turbo Headers, Natural 304 Stainless

Flowtech 12165FLT Small Block Ford Turbo Headers, Polished 304

Flowtech 11706FLT Tight Fit Block Hugger Header, Black Paint

Flowtech 11569FLT Small Block Chevy Turbo Headers

Flowtech 11030FLT Universal B/B Chevy Hugger Header, 1.75 In

Flowtech 32166FLT Small Block Ford Turbo Headers, Ceramic Coated

Flowtech 11706-1FLT Tight Fit Block Hugger Header, Silver Metallic

Flowtech 12168FLT Small Block Ford Turbo Headers, Polished 304

Flowtech 12153FLT Coyote Turbo Headers, Polished 304 Stainless

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

Flowtech 11705-7FLT Block Hugger Header, SB Chevy, Stainless Steel

Flowtech 31506FLT Long Tube Header, Ceramic Coated

Flowtech 11506FLT Long Tube Header, 1.625 Inch Tube Size

Flowtech 11500FLT, Long Tube Header, 3 Inch Collector Size

Flowtech 31500FLT, Long Tube Header, Ceramic Coated