Kooks Ford 5.4L / 5.8L 4V 1 7/8in SS 5.4L Shelby Flange (Bank)

Starting with a 3/8-inch thick piece of 304 stainless steel, this Kooks header flange is built to handle the heat and pressure of performance Ford engines. It's specifically designed with oval ports to accommodate 1-7/8 inch primary tubes, making it a solid choice for custom exhaust builds on 5.4L and 5.8L 4V engines, like those found in the GT500. The stock bolt pattern ensures it lines up with your existing manifold or collector setup, simplifying the fabrication process.

This flange is a key component for anyone looking to build or replace a section of their high-performance exhaust system. The use of 304 stainless steel means it’s well-built to resist corrosion and withstand the rigors of the road, whether you're on the street or the track. Kooks Headers has been in the exhaust game for over 50 years, and their products are handcrafted in the USA, with each piece being dyno and race tested to ensure it performs as expected.

This flange is sold individually, so you'll need to order two if you're working on a V-engine setup. It’s designed to fit a wide range of Ford vehicles, including classic models like the 1971-1974 DeTomaso Pantera and more modern trucks like the 2003-2014 Ford E-150. Remember, this part is not CARB approved and cannot be shipped to California.