Kooks Headers 1131H060 1-5/8in. Long Tube Headers & GREEN Connection Kit 2005-2010 Mustang GT 4.6L 3V

The Kooks 1131H060 is a 1-5/8-inch long tube header and GREEN (H) connection kit designed for the 2005–2010 Ford Mustang GT with the 4.6L 3-valve engine. Engineered and handcrafted in the USA, these headers are built from premium stainless steel for exceptional corrosion resistance, durability, and long-lasting performance under extreme heat cycles.

Kooks Headers has been a leader in high-performance exhaust technology since 1962, with over 50 years of racing heritage across NHRA, IHRA, NMCA, NMRA, NASCAR, and SCCA competition. The 1131H060 kit combines precision-mandrel-bent primary tubes with the Kooks GREEN (H) Series connection — providing a complete bolt-in solution that pairs long tube headers with an off-road or high-flow mid-pipe connection for maximum exhaust scavenging and power gains.

Key Features:

• 1-5/8-inch primary tube diameter — optimized for peak mid-range and top-end power on the 4.6L 3V engine
• GREEN (H) Series connection kit — high-flow mid-pipe connection included for a complete header-back solution
• Stainless steel construction — resists rust, corrosion, and heat fatigue for extended service life
• Mandrel-bent tubes — maintains consistent inner diameter throughout each bend to maximize exhaust flow
• Handcrafted in the USA — precision TIG-welded by Kooks craftsmen in their American facility
• Bolt-on fitment — designed as a direct replacement for factory exhaust manifolds on 2005–2010 Mustang GT 4.6L 3V
• Backed by Kooks' decades of championship-winning racing expertise

The Kooks 1131H060 is an ideal upgrade for Mustang GT owners seeking serious exhaust flow improvements, stronger power output, and an aggressive exhaust note — all in a durable, American-made stainless steel package.