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Doug's Headers D325 Full Length Header, 2 In, 68-72 Chevelle, CC
Doug's Headers D325 Full Length Header, 2 In, 68-72 Chevelle, CC

Doug's Headers D325 Full Length Header, 2 In, 68-72 Chevelle, CC

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Doug's Headers D325 Full Length Header, 2 In, 68-72 Chevelle, CC
Doug's Headers D325 Full Length Header, 2 In, 68-72 Chevelle, CC
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We estimate this item will ship on or before March 20th.
Part # 447D325
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 2 business days for Dougs Headers to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


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Doug's PASSENGER CAR HEADERS Long Tube Metallic Ceramic CoatedHeader 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.

  • 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 isfinished with a Metallic Ceramic Thermal Barrier Coating polished to a high luster appearance offering corrosion and heat resistance up to 1400 degrees

Installation Instructions (PDF)


1970-1972 Chevrolet Camaro 6.6L/402 V8
1968-1969 Chevrolet Chevelle 6.5L/396 V8
1970-1973 Chevrolet Chevelle 6.6L/400 V8
1970-1972 Chevrolet Chevelle 6.6L/402 V8
1970-1973 Chevrolet Chevelle 7.4L/454 V8
1968-1969 Chevrolet El Camino 6.5L/396 V8
1970-1976 Chevrolet El Camino 6.6L/400 V8
1970-1972 Chevrolet El Camino 6.6L/402 V8
1970-1974 Chevrolet El Camino 7.4L/454 V8
1973-1976 Chevrolet Malibu 6.6L/400 V8
1973-1974 Chevrolet Malibu 7.4L/454 V8
1970-1974 Pontiac Firebird 6.6L/400 V8
1971-1974 Pontiac Firebird 7.5L/455 V8


  • Doug's Headers D325 2" 4-Tube Full Length Header Chevrolet Chevelle Big Block Chevrolet 68-72 Metallic Ceramic Coating
  • Ceramic Coated
  • Collector: 3 1/2
  • Port: SAP
  • Primary: 2
  • Use Big block frame stands and mounts
  • Does not fit W/powerglide or Saginaw 825 steering
  • exc. states w/Calif. emission stds
  • removal/modification of locking steering column req.
  • with A/C
  • For Off-Road Use Only
  • with Column Shift
Some parts are not legal for use in California or other states with similar laws/regulations

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