• 3/8" Thick machined flanges... no warping
• CNC mandrel bent tubes... accurate fit & better flow
• Precision formed long transition collectors and long tube design... reduces backpressure and increases higher RPM horsepower
• Heavy 16 gauge tubing... longer life
• Tubes are pre-polished to remove scratches and the header is finished with a Metallic Ceramic Thermal Barrier Coating polished to a high luster appearance offering corrosion and heat resistance up to 1400 degrees

Chevelle - 64-77

El Camino - 64-77

Monte Carlo - 70-77

Caprice/BelAir/Impala etc Passenger car 70-74

Camaro - 70-72

• 3/8" Thick machined flanges... no warping
• CNC mandrel bent tubes... accurate fit & better flow
• Precision formed long transition collectors and long tube design... reduces backpressure and increases higher RPM horsepower
• Heavy 16 gauge tubing... longer life
• Tubes are pre-polished to remove scratches and the header is finished with a Metallic Ceramic Thermal Barrier Coating polished to a high luster appearance offering corrosion and heat resistance up to 1400 degrees

Chevelle - 64-77

El Camino - 64-77

Chevrolet/GMC C-10, C-20 - 67-87

• 69 - Big Block frame stands and motor mounts must be used to insure proper engine location and header fit
• 94 - Non catalytic converter equipped
• 226 - This long tube header has excellent ground clearance with collector above the bottom of the frame rails
• 247 - Will work with 4L60E and 4L80E transmissions

Chevrolet/GMC Blazer/Jimmy - 68-87

• 69 - Big Block frame stands and motor mounts must be used to insure proper engine location and header fit
• 94 - Non catalytic converter equipped
• 226 - This long tube header has excellent ground clearance with collector above the bottom of the frame rails
• 247 - Will work with 4L60E and 4L80E transmissions

Monte Carlo - 70-77

Caprice/BelAir/Impala etc Passenger car 70-74

Camaro - 70-72

Doug's PASSENGER CAR HEADERS Long Tube Metallic Ceramic Coated Header development and design is complex and requires a substantial amount of time and resources to do the job right! Many manufacturers are unwilling to make the commitment and instead offer compromised headers at lower prices. Doug's will not compromise performance, quality or fit to compete with inferior designs at cheap prices. Every Doug's header is tuned with the proper tube size and length to efficiently remove all the exhaust from each cylinder, reducing pumping losses resulting in a dramatic increases in horsepower and torque. Doug's headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.