Doug's Headers
D567
Doug's Headers D567 1-7/8 4-Tube Full Length Exhaust Header for Pontiac GTO 326-455 64-72
EAN: 0694342509804
UPC: 694342509804
Headers
Thick flanges (3/8 inch to 5/8 inch); no warping
CNC mandrel bent tubes; accurate fit & better flow
Precision formed long transition collectors; reduces backpressure
Heavy gauge tubing (16 & 14G); longer life
Header tubes are pre-polished; better appearance
Doug's Passenger Car 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. Dougâs will not compromise performance, quality or fit to compete with inferior designs at cheap prices. Every Dougâs 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. Dougâs headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.
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