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Doug Thorley Headers Accessories offers a full line of super quality gaskets. Made of the best high-temp materials (good to 12000F), these are the only gaskets that will work with Doug Thorley Headers. Replacement parts and hardware available separately: Gaskets, Heat Risers, Fittings, ‘J’ and ‘U’ bends, Stainless and Aluminized Tubing, Mufflers etc. Contact your Sales Technician for more information.