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Doug's Headers Manuals & User Guides

Doug's Headers, a PerTronix Performance Brand, manufactures high-quality exhaust headers, engine swap exhaust systems, and related automotive accessories.

Tip: include the full model number printed on your Doug's Headers label for the best match.

About Doug's Headers manuals on Manuals.plus

ડગના હેડર્સ is a premier manufacturer of high-performance exhaust headers and automotive exhaust systems, part of the PerTronix Performance Brands family. Since 1958, they have been known for producing meticulously tuned, hand-built, mandrel-bent exhaust headers that significantly enhance engine horsepower and torque.

Whether you are performing an LS engine swap, restoring a classic muscle car, or upgrading an existing exhaust system, Doug's Headers provides precisely crafted solutions. Their product line includes long tube, mid-length, and Tri-Y headers, as well as complete bolt-on exhaust systems and mounting hardware. Doug's Headers are renowned for their exceptional fitment, premium sealing beads, and durable metallic ceramic coatings.

Doug's Headers manuals

તરફથી નવીનતમ માર્ગદર્શિકાઓ manuals+ આ બ્રાન્ડ માટે ક્યુરેટ કરેલ.

Pertronix 1442 Ignitor 4 cyl IHC Distributor Instructions

1 જૂન, 2026
Pertronix 1442 Ignitor 4 cyl IHC Distributor Specifications Product Line Ignitor Voltage 12 Polarity Negative Ground Trigger Type Magnetic; Hall Effect Distributor Fitment International Coil Combability 3 Dwell Fixed Start…

Doug's Headers D305 Installation Instructions

સ્થાપન માર્ગદર્શિકા
Installation guide and warranty information for Doug's Headers D305 mid-length headers for 1967-69 Camaro, 1968-79 Nova, and 1967-69 Firebird vehicles with small block Chevy engines.

Doug's Headers D103 Installation Instructions

સ્થાપન માર્ગદર્શિકા
Installation instructions and warranty information for Doug's Headers D103, compatible with 1968-74 AMC vehicles including AMX, Javelin, Matador, Gremlin, and Hornet.

Doug's Headers support FAQ

આ બ્રાન્ડ માટે માર્ગદર્શિકાઓ, નોંધણી અને સમર્થન વિશે સામાન્ય પ્રશ્નો.

  • Are Doug's Headers compatible with classic cars and engine swaps?

    Yes, Doug's Headers specializes in exhaust systems for classic muscle cars and engine swaps, providing tailored components like headers, motor mount brackets, and transmission crossmembers.

  • What warranty does Doug's Headers offer?

    All Doug's Headers and Exhaust products are guaranteed to the original purchaser to be free of defects in material and workmanship for one year from the date of purchase.

  • When should I re-tighten my header bolts?

    Doug's Headers recommends checking all bolts periodically to ensure they have not loosened. Re-tighten them after the first 500 miles and then again at 1,000 miles.

  • How do I protect my newly coated headers during engine break-in?

    Extreme heat can damage the appearance of the coating during a new engine break-in. Doug's Headers recommends breaking in new motors with stock manifolds or an old set of headers to prevent this.