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No matter the condition of your 1978 Grand Prix, OPGI offers twenty-five Header related parts to boost performance and get your 1978 Grand Prix back on the road. Choose from trusted brands like Hedman Hedders, Hooker Blackheart and Doug's Headers, with prices ranging from $48.99 to $1,023.99, all backed by our Price Match Guarantee. With OPGI’s 60-day return policy and thousands of verified reviews, you can shop confidently for your 1978 Grand Prix restoration. Enjoy fast shipping directly to your home, or visit our Southern California Showroom & Warehouse to see our Header related parts in person.
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