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$715.85
$481.99
Doug's Headers D690YS-R Tri-Y Header, 1-5/8 In, 64-70 Mustang, Raw
Doug's Headers D690YS-R Tri-Y Header, 1-5/8 In, 64-70 Mustang, Raw

Doug's Headers D690YS-R Tri-Y Header, 1-5/8 In, 64-70 Mustang, Raw

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Doug's Headers D690YS-R Tri-Y Header, 1-5/8 In, 64-70 Mustang, Raw
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Doug's Headers D690YS-R Tri-Y Header, 1-5/8 In, 64-70 Mustang, Raw
Doug's Headers D690YS-R Tri-Y Header, 1-5/8 In, 64-70 Mustang, Raw
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Dougs Headers estimates this item will ship on or before August 22nd.
Part # 447D690YSR
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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.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

MFG. Part #:
D690YS-R
GTIN Code:
694342510879

Info

Doug's PASSENGER CAR HEADERS Raw SteelHeader 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
  • 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 left unfinished (raw steel) for individual customizing

Application

1964 Ford Mustang 4.3L/260 V8
1965-1968 Ford Mustang 4.7L/289 V8
1969-1970 Ford Mustang 5L/302 V8

Notes

  • Doug's Headers D690YS-R 1 5/8" Tri-Y Header Ford Mustang Small Block Ford 64-70 Raw Steel
  • Tri-Y Design - Raw Steel
  • Collector: 2 1/2
  • Port: SAP
  • Primary: 1 5/8 - 2
  • exc. states w/Calif. emission stds
  • Must use 1965-66 Non Hi-Po V8 clutch equalizer bar
  • use PS bracket H7609
  • Use C5ZZ16A052E brace if shock mount ctr. to ctr.is less than 33 3/4 in
  • with A/C
  • For Off-Road Use Only
  • without Outside Air Injection

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