Doug's Headers

Doug's Steel Header - D755Y

Part #
D755Y
Line:
DGS

Product Information

  • Warranty:  30 Month Limited Warranty
  • Unit of Measure:  Per Set
  • UPC:  # 694342510909
  • Finish: Semi-Gloss Metallic Ceramic Coat
  • Flange Thickness (in): 3/8 Inch
  • Material: Steel
  • Hardware Included: Yes
  • Attachment Method: 3-Bolt Flange
  • Collector Size (in): 2-1/2 Inch
  • Gasket Or Seal Included: Yes
  • Primary Tube Diameter (in): 1-3/4 Inch
  • Engine Make/Size: Oldsmobile 403-455
  • Oxygen Sensor Port Included: Yes

Applications for this Product

  • This product is universal and applies to all vehicles.

Detailed Description

Header; Tri Y; 1973 To 1978 GMC Motorhome 455 Olds 1-3/4 To 2 Inch Primary; 3 Inch Collector; Silver; Ceramic Coated D755Y;

Doug's PASSENGER CAR HEADERS Tri-Y 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 rechecked numerous times during the design and manufacturing process.

  • 3/8 inch thick machined flanges - no warping
  • CNC mandrel bent tubes - accurate fit and better flow
  • Tri-Y headers yield maximum power from off idle to 4500 RPM making them well suited for applications demanding maximum mid-range torque with maximum fuel economy
  • 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 Fahrenheit.

Brand Information

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.
Show All Details Show Less Details