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Doug's Headers are a fixture in the motorsports aftermarket, pioneering quality muscle car performance headers for decades. Unlike the competition, Doug's Headers prides ourselves on superior design detail resulting in a hassle-free installation for any application.

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Doug's Headers 1973-78 Oldsmobile Motor Home 455 1 3/4" Long Tube Header D755Y
Model: 5124774
Doug's is the pioneering force behind the popular TRI-Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid-range torque without sacrificing top end power. TRI-Y's are a great choice for daily drivers and…
from $1,602.81 st
Doug's Headers 1964-70 Ford Mustang/Mercury Cougar Small Block Auto Transmission 1 5/8" Long Tube Header D690YA
Model: 5124772
Doug's is the pioneering force behind the popular TRI-Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid-range torque without sacrificing top end power. TRI-Y's are a great choice for daily drivers and…
from $1,743.99 st
Doug's Headers 1967-71 Ford Mustang/Fairlane/Torino/Cougar 351C 4 Barrel Heads Manual Transmission 1 3/4" Long Tube Header D670S4
Model: 5124771
Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest…
from $1,651.08 st
Doug's Headers 1967-70 Ford Mustang/Fairlane/Torino/Cougar 351W 1 3/4" TRI-Y Header D669Y
Model: 5124770
Doug's is the pioneering force behind the popular TRI-Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid-range torque without sacrificing top end power. TRI-Y's are a great choice for daily drivers and…
from $1,559.50 st
Doug's Headers 1979-93 Fox Body Mustang/Mercury Capri Small Block 1 3/4" Long Tube Header D6671
Model: 5124769
Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest…
from $1,651.08 st
Doug's Headers 1965-77 Ford Mustang/Fairlane/Maverick/Cougar 5.0L Coyote Engine Swap 1 3/4" Long Tube Header D6652
Model: 5124768
Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest…
from $1,602.81 st
Doug's Headers 1964-77 Ford/Mercury Small Block 1 5/8" TRI-Y Header D665
Model: 5124767
Mid-Length Headers, often called Clipsters, are engineered to provide superior performance gains over Manifold Replacements or Block Hugger style headers. These headers enhance your vehicles's horsepower and torque while preserving ground…
from $1,506.21 st
Doug's Headers 1962-70 Ford Mustang/Falcon/Comet/Cougar Small Block 1 5/8" TRI-Y Header D661Y
Model: 5124765
Doug's is the pioneering force behind the popular TRI-Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid-range torque without sacrificing top end power. TRI-Y's are a great choice for daily drivers and…
from $1,601.95 st
Doug's Headers 1966-70 Ford Mustang/Fairlane/Cougar FE Big Block 2" Long Tube Header D627
Model: 5124762
Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest…
from $2,678.58 st
Doug's Headers 1967-70 Ford Mustang/Mercury Cougar FE Big Block 1 3/4" Long Tube Header D626
Model: 5124761
Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest…
from $1,797.99 st
Doug's Headers 1948-77 Ford/Mercury Small Block with Mustang II Suspension 1 3/4" Long Tube Header D623
Model: 5124695
Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest…
from $1,529.52 st
Doug's Headers Oil pan, LS Swap up to 4" stroke SKOP100
Model: 5124635
Condition: NEW
Your engine is the heart of your vehicle, giving it its pulse. Doug's line of LS Engine Swap products work together to ensure a proper fit for the LS Engine into specific applications. Engine swap projects often take place over time and…
Doug's Headers Electric Exhaust Cutout with Hook-Up Kit for 3" Tubing (Single) DEC300AKS
Model: 5124613
Condition: NEW
Unleash the true voice of your vehicle with Doug's Electric Cutouts! Created with the enthusiast in mind, these revolutionary cutouts transform your ride from mild to wild with just the push of a button. Experience the exhilaration as your…
Doug's Headers Electric Exhaust Cutout with Hook-Up Kit for 2 1/2" Tubing (Single) DEC250AKS
Model: 5124612
Condition: NEW
Unleash the true voice of your vehicle with Doug's Electric Cutouts! Created with the enthusiast in mind, these revolutionary cutouts transform your ride from mild to wild with just the push of a button. Experience the exhilaration as your…