Menu

Shop

Garage

Cart

Account

Product Summary

5.0, Full-Length Header Tube Type, Hi-Temp Black, Steel

  • Fits Ford Mustang 64-73, Fairlane 66-67, Falcon 60-65, Cougar 67-68, and Coyote 5.0 Swap
  • 3/8" Thick machined flanges resist warping
  • CNC mandrel bent tubes for an accurate fit & better flow
  • Heavy 16 gauge tubing improves lifespan
  • Made from steel and painted in hi-temp black

Key Specs

Header Tube TypeFull-Length
FinishHi-Temp Black
Flange StyleStandard
Primary Tube Diameter1-3/4"
Material TypeSteel

Need To Know

This Product Will Ship Free

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy

Dougs Headers D6652-B Details

Doug's PASSENGER CAR HEADERS Long Tube Hi-Temp Black 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.

  • 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 Hi-Temp Black Coating
  • Doug's Headers D6652-B 1 3/4" 4-Tube Full Length Header Ford Mustang 64-73 Fairlane 66-67 Falcon 60-65 Cougar 67-68 Coyote 5.0 Swap with TCI and similar Mustang II front suspension rack conversions,  Hi-Temp Black Coating
  • Will not fit original/stock style front end chassis applications
  • Doug's Headers D6652-B 1 3/4" 4-Tube Full Length Header Ford Mustang 64-73 Fairlane 66-67 Falcon 60-65 Cougar 67-68 Coyote 5.0 Swap with TCI and similar Mustang II front suspension rack conversions,  Hi-Temp Black Coating
  • Will not fit original/stock style front end chassis applications

Guides & Documents

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Dougs Headers D6652-B Specifications

KEY SPECS
MFG. Part #D6652-B
BrandDougs Headers
Header Tube TypeFull-Length
FinishHi-Temp Black
Flange StyleStandard
Primary Tube Diameter1-3/4"
Material TypeSteel
ColorBlack
Weld-UpNo
Collector Diameter3 Inch
Hardware IncludedYes
Gasket(s) IncludedYes
GENERAL
Speedway Motors Catalog Part #447-D6652B
Sold in QuantityPair
GTIN Code694342543747