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Doug Thorley Headers THY-341-C Exhaust Header for Pontiac 326/455
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*Price and Stocks may change without prior notice
*Packaging of actual item may differ from photo shown
- Electrical items MAY be 110 volts.
- 7 Day Return Policy
- All products are genuine and original
Doug Thorley Headers THY-341-C Exhaust Header for Features
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Made in the USA with limited lifetime warranty
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Extra thick 14GA tubing and 3/8 inch thick flanges
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Ceramic coated inside and out
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Kit includes all required gaskets and/or installation hardware
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CARB approved, 50 state smog legal
About Doug Thorley Headers THY-341-C Exhaust Header For
Doug Thorley Headers THY-341-C 4:1 long tube headers deliver the ultimate in performance and for your classic Pontiac 1964-1973 GTO, Lemans / 1967-1974 Firebird, Trans Am / 1970-1974 Grand Prix. 4:1 long tube headers are designed to replace the factory stock exhaust manifolds with a performance component that results in a serious increase in exhaust flow over stock. That better exhaust flow produces noticable gains in horsepower and torque output, while increasing fuel efficiency. The headers are manufactured using heavy duty 14GA tubing, and super flat 3/8 inch head flanges. APPLICATION SPECIFICS: (Pontiac motor) Pontiac 1964-1973 GTO, Lemans / 1967-1974 Firebird, Trans Am / 1970-1974 Grand Prix, 3-tube header combines the two middle exhaust ports, fits D-port cylinder heads only, stock motor mounts, automatic transmission, will not fit with steering column shift. 1-3/4 inch primary tubes, 3 inch collector outlet.
