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No matter the condition of your 1966 GTO, OPGI offers thirty-four Header Accessories related parts to boost performance and get your 1966 GTO back on the road. Choose from trusted brands like Thermo-Tec, ARP and Doug's Headers, with prices ranging from $12.99 to $1,715.99, 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 1966 GTO restoration. Enjoy fast shipping directly to your home, or visit our Southern California Showroom & Warehouse to see our Header Accessories related parts in person.
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