Oldsmobile G-39 Header Reducers

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Oldsmobile G-39

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Make

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G-39

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98 products

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Oldsmobile G-39

Products

Hedman Hedders |

#41821104

Hedman Hedders 21104 3-1/2 Inch Steel Header Reducer 2-1/2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$38.99

/pair

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

Patriot Exhaust |

#9307249

Patriot Exhaust H7249 Replacement Collector Reducer For H8014

Sold in Quantity:

Set

GTIN Code:

694342533175

$98.79

/pair

Patriot H7251 3" Diameter, 2 1/4" Outlet Collector Reducers

Patriot Exhaust |

#9307251

Patriot H7251 3" Diameter, 2 1/4" Outlet Collector Reducers

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$54.86

/pair

Hedman Hedders |

#41821122

Hedman Hedders 21122 3 Inch Ball-Style Header Reducers 2-1/4 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt Ball and Socket

$47.65

/pair

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.

G-Comp Rear Suspension 62-67 Nova

Step by Step instructions to install a G-comp rear suspension setup.

Wrapping Exhaust Manifolds to Reduce Under Hood Temps

Learn how to wrap exhaust headers to help keep under hood temperatures down. This articles shows how cast iron exhaust manifolds are wrapped in 1-inch black header wrap with stainless steel exhaust wrap ties.

How to Reduce Under Hood Temp - Exhaust Wrap

Follow these tips and tricks on how to properly wrap your exhaust manifolds to reduce underhood temperatures.

G-Comp Front Suspension for 62-67 Nova

Step by Step guide to installing a G-Comp front suspension on your Nova.

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.

Header Suggestions for a '33 Ford

In this Tech Tip, one of our customers asks for a suggestion on exhaust headers for his 1933 pickup.

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.

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.

Replacing a G-Body 7.5" Bolt Rear End

Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.

Hedman Hedders |

#41821156

Hedman Hedders 21156 3 Inch Header Collector Conversion Kit

Sold in Quantity:

Kit

Flange Style:

3-Bolt Ball and Socket

$165.26

/kit

Hedman Hedders |

#41821143

Hedman Hedders 21143 3 Inch Ball-Style Header Reducer 2-1/2 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt Ball and Socket

$23.92

/each

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 |

#41821106

Hedman Hedders 21106 2-1/2 Inch Header Reducer w/O2 Bung 2 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt

$34.99

/each

Hedman Hedders |

#41821107

Hedman Hedders 21107 3 Inch Header Reducer w/O2 Bung 2-1/4 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt

$30.12

/each

Hedman Hedders |

#41821109

Hedman Hedders 21109 2-1/2 Inch Header Reducers 2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$42.59

/pair

Hedman Hedders |

#41821113

Hedman Hedders 21113 2-1/2 Inch Ball-Style Header Reducers 2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt Ball and Socket

$30.99

/pair

Hedman Hedders |

#41821115

Hedman Hedders 21115 3 Inch Ball-Style Header Reducers 2-1/2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt Ball and Socket

$33.99

/pair

Hedman Hedders |

#41821153

Hedman Hedders 21153 2-1/2 Inch Header Collector Conversion Kit

Sold in Quantity:

Kit

Flange Style:

3-Bolt Ball and Socket

$37.99

/kit

Hedman 22105 2-1/2 Inch Stainless Steel Header Reducers, Pair

Hedman Hedders |

#41822105

Hedman 22105 2-1/2 Inch Stainless Steel Header Reducers, Pair

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$178.99

/pair

Hedman Hedders |

#41822115

Hedman Hedders 22115 3 Inch Ball-Style Header Reducers 2-1/2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt Ball and Socket

$167.97

/pair

Hedman Hedders |

#41822123

Hedman Hedders 22123 2-1/2 Inch Ball-Style Header Reducers 2 Inch

Sold in Quantity:

Pair

Flange Style:

3-Bolt Ball and Socket

$172.92

/pair

Hedman Hedders |

#41822124

Hedman Hedders 22124 2-1/2 Inch Ball-Style Header Reducer 2 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt Ball and Socket

$93.62

/each

Hedman Hedders |

#41821119

Hedman Hedders 21119 3 Inch Ball-Style Header Reducers 3 Inch

(1)

Sold in Quantity:

Pair

Flange Style:

3-Bolt Ball and Socket

$38.99

/pair

-9%

JBA 1650ST Stainless Steel 1650 Starter Tubes

JBA Headers |

#4471650ST

JBA 1650ST Stainless Steel 1650 Starter Tubes

(3)

Sold in Quantity:

Pair

Flange Style:

2-Bolt

$70.28

/set

$77.31

3-Bolt Exhaust Flange Collector w/ O2 Bung, 2.5-inch

Speedway Motors |

#9302503

3-Bolt Exhaust Flange Collector w/ O2 Bung, 2.5-inch

(1)

Gasket(s) Included:

Yes

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$49.99

/pair

Hedman Hedders |

#41821116

Hedman Hedders 21116 2-1/2 Inch Ball-Style Header Reducer 2 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt Ball and Socket

$25.12

/each

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.0/2.25-in

Speedway Motors |

#9302509

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.0/2.25-in

Gasket(s) Included:

Yes

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$90.99

/pair

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.0/2.5-in

Speedway Motors |

#9302510

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.0/2.5-in

(1)

Gasket(s) Included:

Yes

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$94.99

/pair

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 2.5/2.0-in SS

Speedway Motors |

#9302512

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 2.5/2.0-in SS

Gasket(s) Included:

Yes

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$110.99

/pair

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.5/2.5-in SS

Speedway Motors |

#9302515

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.5/2.5-in SS

Gasket(s) Included:

Yes

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$124.99

/pair

3-Bolt Exhaust Flange Collector w/ O2 Bung, 3.0/2.5-in SS

Speedway Motors |

#9302506

3-Bolt Exhaust Flange Collector w/ O2 Bung, 3.0/2.5-in SS

Gasket(s) Included:

Yes

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$56.99

/pair

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.5/3.0-in

Speedway Motors |

#9302518

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.5/3.0-in

Gasket(s) Included:

Yes

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$114.99

/pair

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.5/3.0-in SS

Speedway Motors |

#9302519

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.5/3.0-in SS

Gasket(s) Included:

Yes

Sold in Quantity:

Pair

Flange Style:

3-Bolt

$146.99

/pair

Hedman Hedders |

#41821134

Hedman Hedders 21134 3 Inch Ball-Style Header Reducer 3 Inch

Sold in Quantity:

Each

Flange Style:

3-Bolt Ball and Socket

$25.57

/each

-9%

Patriot Exhaust |

#447H7248

Patriot Exhaust H7248 Collector Reducers, 2.5" to 2.0" Outlet

Material Type:

Steel

Flange Style:

3-Bolt

$43.37

/pair

$47.71

-9%

Patriot Exhaust |

#447H7238

Patriot Exhaust H7238 Collector Reducers, 3 Inch

(2)

Material Type:

Steel

Flange Style:

3-Bolt

$49.37

/pair

$54.31

-9%

Patriot Exhaust |

#447H7237

Patriot Exhaust H7237 Collector Reducers, 3 Inch

(2)

Material Type:

Steel

Flange Style:

3-Bolt

$49.37

/pair

$54.31

Speedway Motors |

#91013752

Header Reducer Kit, 3 to 2-1/4 Inch

(20)

Material Type:

Steel

Flange Style:

3-Bolt

$29.99

/pair

New Product

Speedway Motors |

#91013755-2

Hex Head Header Reducer Hardware Kit

Sold in Quantity:

Each

$1.39

/each

Spectre 4642 Header Reducer Kit, 2-1/2 Inlet, 2-1/4 Inch Outlet, Pair

Spectre Performance |

#4654642

Spectre 4642 Header Reducer Kit, 2-1/2 Inlet, 2-1/4 Inch Outlet, Pair

(2)

Material Type:

Steel

Flange Style:

3-Bolt

$34.99

/pair

Showing 1 - 36 of 98 results

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Oldsmobile G-39 Header Reducers

Flange Style

Brand

Availability

Discounts

Price

Customer Rating

Products

Hedman Hedders 21104 3-1/2 Inch Steel Header Reducer 2-1/2 Inch

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

Patriot Exhaust H7249 Replacement Collector Reducer For H8014

Patriot H7251 3" Diameter, 2 1/4" Outlet Collector Reducers

Hedman Hedders 21122 3 Inch Ball-Style Header Reducers 2-1/4 Inch

Related Articles

Hedman Hedders 21156 3 Inch Header Collector Conversion Kit

Hedman Hedders 21143 3 Inch Ball-Style Header Reducer 2-1/2 Inch

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

Hedman Hedders 21106 2-1/2 Inch Header Reducer w/O2 Bung 2 Inch

Hedman Hedders 21107 3 Inch Header Reducer w/O2 Bung 2-1/4 Inch

Hedman Hedders 21109 2-1/2 Inch Header Reducers 2 Inch

Hedman Hedders 21113 2-1/2 Inch Ball-Style Header Reducers 2 Inch

Hedman Hedders 21115 3 Inch Ball-Style Header Reducers 2-1/2 Inch

Hedman Hedders 21153 2-1/2 Inch Header Collector Conversion Kit

Hedman 22105 2-1/2 Inch Stainless Steel Header Reducers, Pair

Hedman Hedders 22115 3 Inch Ball-Style Header Reducers 2-1/2 Inch

Hedman Hedders 22123 2-1/2 Inch Ball-Style Header Reducers 2 Inch

Hedman Hedders 22124 2-1/2 Inch Ball-Style Header Reducer 2 Inch

Hedman Hedders 21119 3 Inch Ball-Style Header Reducers 3 Inch

JBA 1650ST Stainless Steel 1650 Starter Tubes

3-Bolt Exhaust Flange Collector w/ O2 Bung, 2.5-inch

Hedman Hedders 21116 2-1/2 Inch Ball-Style Header Reducer 2 Inch

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.0/2.25-in

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.0/2.5-in

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 2.5/2.0-in SS

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.5/2.5-in SS

3-Bolt Exhaust Flange Collector w/ O2 Bung, 3.0/2.5-in SS

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.5/3.0-in

3-Bolt Exhaust Flange to V-Band Flange w/ O2 Bung, 3.5/3.0-in SS

Hedman Hedders 21134 3 Inch Ball-Style Header Reducer 3 Inch

Patriot Exhaust H7248 Collector Reducers, 2.5" to 2.0" Outlet

Patriot Exhaust H7238 Collector Reducers, 3 Inch

Patriot Exhaust H7237 Collector Reducers, 3 Inch

Header Reducer Kit, 3 to 2-1/4 Inch

Hex Head Header Reducer Hardware Kit

Spectre 4642 Header Reducer Kit, 2-1/2 Inlet, 2-1/4 Inch Outlet, Pair

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