Flowmaster Mercury Cougar Headers and Exhaust Parts

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Mercury Cougar

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-11%

Flowmaster |

#3789424472

Flowmaster 9424472 Super 44 Series Muffler, 2.25 In/Out

Muffler Type:

Chambered

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$137.95

/each

$155.95

-11%

Flowmaster |

#3789425400

Flowmaster 9425400 40 Series Delta Flow Muffler, 2.50 In/Out

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$149.95

/each

$168.95

-7%

Flowmaster |

#3788435119

Flowmaster 8435119 Delta Force 10 Series Muffler, 3.50 In/Out

Inlet Diameter:

3.5"

Outlet Diameter:

3.5"

$222.95

/each

$241.95

-8%

Flowmaster |

#3788435409

Flowmaster 8435409 Delta Force 40 Series Race Muffler 3.50 In/Out

Muffler Type:

Chambered

Inlet Diameter:

3.5"

Outlet Diameter:

3.5"

$199.95

/each

$218.95

-11%

Flowmaster |

#378942450

Flowmaster 942450 50 Series Delta Flow Muffler, 2.25 In/Out

Muffler Type:

Chambered

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$185.95

/each

$209.95

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.

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.

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.

Spherical Bushings for GM A-Body Trailing Arms

Speedway Motors employee Steve upgraded the trailing arms on his 1976 Chevrolet Laguna with some spherical bushings.

-11%

Flowmaster |

#378943042

Flowmaster 943042 40 Series Delta Flow Muffler, 3.00 In/Out

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$149.95

/each

$168.95

-8%

Flowmaster |

#37815377B

Flowmaster 15377B Exhaust Tip, 3 in. Inlet I.D., 7 in. Length

Exhaust Tubing Diameter:

3 Inch

Finish:

Ceramic Coated

$119.95

/each

$130.95

-7%

Flowmaster |

#378854040-10

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

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$278.95

/each

$302.95

-7%

Flowmaster |

#378MB130048

Flowmaster MB130048 Exhaust Pipes, 3.00 in. O.D x 48in

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

3.00"

$96.89

/each

$104.95

-8%

Flowmaster |

#378Y250300

Flowmaster Y250300 Scavenger Series Y Collector, 2.5 Pri / 3 Col

Hardware Included:

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Aluminized

$124.95

/each

$136.95

-7%

Flowmaster |

#37815938

Flowmaster 15938 Ball Flange 2-1/2 Inch Collector to 2.5 Inch

Material Type:

Steel

Flange Style:

2-Bolt

$212.95

/kit

$230.95

-9%

Flowmaster |

#378425404

Flowmaster 425404 40 Series Muffler, 2.50 IN(D)/OUT(D)

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$101.95

/each

$112.95

-9%

Flowmaster |

#378843015

Flowmaster 843015 Super 10 Series Muffler, 3.00 In/Out

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$101.95

/each

$112.95

-11%

Flowmaster |

#378524704

Flowmaster 524704 70 Series Big Block II Muffler, 2.25 In/Out

Muffler Type:

Chambered

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$249.95

/each

$281.95

-8%

Flowmaster |

#37815316

Flowmaster 15316 Exhaust Tip, 2.5 in. Inlet I.D., 8.5 in. Length

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Brushed

$181.95

/each

$197.95

-8%

Flowmaster |

#378815953

Flowmaster 815953 Scavenger X-Pipe, 2.5 in. Diameter

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Polished

$118.95

/each

$129.95

-11%

Flowmaster |

#378943050

Flowmaster 943050 50 Series Delta Flow Muffler, 3.00 In/Out

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$173.95

/each

$195.95

-7%

Flowmaster |

#37815926

Flowmaster 15926 S-Bend Assortment, 2.5in set of 6

Exhaust Tubing Diameter:

2-1/2 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.50"

$259.95

/kit

$281.95

Flowmaster |

#37815150S

Flowmaster 15150S Resonator, 2.50 In/Out

GTIN Code:

700042024827

$124.95

/kit

-7%

Flowmaster |

#37815927

Flowmaster 15927 S-Bend Assortment, 3in set of 6

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

3.00"

$259.95

/kit

$281.95

-11%

Flowmaster |

#378943040

Flowmaster 943040 40 Series Delta Flow Muffler, 3.00 In/Out

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$149.95

/each

$168.95

-6%

Flowmaster |

#378815932

Flowmaster 815932 Scavenger X-Pipe, 2.50 in

Exhaust Tubing Diameter:

2-1/2 Inch

Finish:

Raw

$449.95

/kit

$481.95

-7%

Flowmaster |

#378815933

Flowmaster 815933 Scavenger Series Universal X-Pipe Kit, 3 Inch

Exhaust Tubing Diameter:

3 Inch

Finish:

Raw

$478.95

/kit

$518.95

-9%

Flowmaster |

#37842542

Flowmaster 42542 40 Series Muffler, 2.50 In/Out

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$101.95

/each

$112.95

-11%

Flowmaster |

#37853553

Flowmaster 53553 50 Series Big Block Muffler, 3.50 In/Out

Inlet Diameter:

3.5"

Outlet Diameter:

3.5"

$290.95

/each

$327.95

-11%

Flowmaster |

#378942446

Flowmaster 942446 Super 44 Muffler-Offset Inlet-Centered Outlet, 2-1/4

(2)

Muffler Type:

Chambered

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$137.95

/each

$155.95

-11%

Flowmaster |

#378943046

Flowmaster 943046 Super 44 3 In. Muffler, Offset Inlet-Centered Outlet

(2)

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$137.95

/each

$155.95

-11%

Flowmaster |

#378953048

Flowmaster Mufflers 953048 Super 40 Muffler, Offset Inlet/Outlet, 3 In

(1)

Muffler Type:

Chambered

Inlet Diameter:

Outlet Diameter:

$149.95

/each

$168.95

-11%

Flowmaster |

#378125183

Flowmaster 12518300 Hushpower II 304 Muffler 2.5 Inch ID, 18 Inch Case

(1)

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$256.95

/each

$289.95

-11%

Flowmaster |

#378952448

Flowmaster Mufflers 952448 Super 40 2.25 In. Muffler, Offset In/Outlet

(1)

Muffler Type:

Chambered

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$149.95

/each

$168.95

-11%

Flowmaster |

#378125123

Flowmaster 12512300 Hushpower II 304 Muffler 2.5 Inch ID, 12 Inch Case

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$199.95

/each

$224.95

-9%

Flowmaster |

#37842543

Flowmaster Mufflers 42543 40 Series 2.5 Inch Muffler, Offset In/Outlet

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$101.95

/each

$112.95

-11%

Flowmaster |

#378125184

Flowmaster 12518409 Hushpower II 409 Muffler 2.5 Inch ID, 18 Inch Case

(2)

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$199.95

/each

$224.95

-7%

Flowmaster |

#37815923

Flowmaster 15923 Ball Flange 3.5 Inch Collector to 3 Inch

Material Type:

Steel

Flange Style:

2-Bolt

$265.95

/pair

$287.95

-7%

Flowmaster |

#37815925

Flowmaster 15925 Ball Flange 3 Inch Collector to 2.5 Inch

(5)

Material Type:

Steel

Flange Style:

2-Bolt

$207.95

/pair

$224.95

-11%

Flowmaster |

#378952549

Flowmaster 952549 Super 40 Series Delta Flow Muffler, 2.50 In/Out

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$152.95

/each

$172.95

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Flowmaster Mercury Cougar Headers and Exhaust Parts

Year

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Part

Brand

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Customer Rating

Products

Flowmaster 9424472 Super 44 Series Muffler, 2.25 In/Out

Flowmaster 9425400 40 Series Delta Flow Muffler, 2.50 In/Out

Flowmaster 8435119 Delta Force 10 Series Muffler, 3.50 In/Out

Flowmaster 8435409 Delta Force 40 Series Race Muffler 3.50 In/Out

Flowmaster 942450 50 Series Delta Flow Muffler, 2.25 In/Out

Related Articles

Flowmaster 943042 40 Series Delta Flow Muffler, 3.00 In/Out

Flowmaster 15377B Exhaust Tip, 3 in. Inlet I.D., 7 in. Length

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

Flowmaster MB130048 Exhaust Pipes, 3.00 in. O.D x 48in

Flowmaster Y250300 Scavenger Series Y Collector, 2.5 Pri / 3 Col

Flowmaster 15938 Ball Flange 2-1/2 Inch Collector to 2.5 Inch

Flowmaster 425404 40 Series Muffler, 2.50 IN(D)/OUT(D)

Flowmaster 843015 Super 10 Series Muffler, 3.00 In/Out

Flowmaster 524704 70 Series Big Block II Muffler, 2.25 In/Out

Flowmaster 15316 Exhaust Tip, 2.5 in. Inlet I.D., 8.5 in. Length

Flowmaster 815953 Scavenger X-Pipe, 2.5 in. Diameter

Flowmaster 943050 50 Series Delta Flow Muffler, 3.00 In/Out

Flowmaster 15926 S-Bend Assortment, 2.5in set of 6

Flowmaster 15150S Resonator, 2.50 In/Out

Flowmaster 15927 S-Bend Assortment, 3in set of 6

Flowmaster 943040 40 Series Delta Flow Muffler, 3.00 In/Out

Flowmaster 815932 Scavenger X-Pipe, 2.50 in

Flowmaster 815933 Scavenger Series Universal X-Pipe Kit, 3 Inch

Flowmaster 42542 40 Series Muffler, 2.50 In/Out

Flowmaster 53553 50 Series Big Block Muffler, 3.50 In/Out

Flowmaster 942446 Super 44 Muffler-Offset Inlet-Centered Outlet, 2-1/4

Flowmaster 943046 Super 44 3 In. Muffler, Offset Inlet-Centered Outlet

Flowmaster Mufflers 953048 Super 40 Muffler, Offset Inlet/Outlet, 3 In

Flowmaster 12518300 Hushpower II 304 Muffler 2.5 Inch ID, 18 Inch Case

Flowmaster Mufflers 952448 Super 40 2.25 In. Muffler, Offset In/Outlet

Flowmaster 12512300 Hushpower II 304 Muffler 2.5 Inch ID, 12 Inch Case

Flowmaster Mufflers 42543 40 Series 2.5 Inch Muffler, Offset In/Outlet

Flowmaster 12518409 Hushpower II 409 Muffler 2.5 Inch ID, 18 Inch Case

Flowmaster 15923 Ball Flange 3.5 Inch Collector to 3 Inch

Flowmaster 15925 Ball Flange 3 Inch Collector to 2.5 Inch

Flowmaster 952549 Super 40 Series Delta Flow Muffler, 2.50 In/Out