3in Ball & Socket Flange Kit Steel

The HEDMAN 3in Ball & Socket Flange Kit Steel is a precision exhaust collector reducer engineered for builders and engine shops seeking reliable, repeatable connections between custom headers and exhaust systems. This pair of steel flanges transforms a 3-inch inlet diameter down to a 3-inch outlet diameter using a proven three-bolt ball and socket design, making it essential for stepped exhaust builds, turbo manifold transitions, and high-temperature collector modifications where traditional rigid flanges would create clearance or alignment headaches.

The ball and socket joint mechanism permits angular articulation—typically up to 15 degrees—allowing exhaust piping to compensate for engine bay geometry without forcing costly re-welding or component repositioning. Manufactured in heavy-gauge steel with natural (uncoated) finish, each flange resists warping under sustained heat cycles common in performance applications, while the included three-bolt hardware ensures a gas-tight seal without requiring expensive studs or custom fasteners. The compact 5.8 x 4 x 7-inch package weight of 3.05 lbs per pair reflects solid material density rather than hollow construction, critical for durability in aggressive exhaust environments.

This kit benefits street and competition builders, diesel engine shops, and vintage hot rodders running custom header fabrication where factory collector geometry does not align with modern exhaust routing. Installation requires basic hand tools and moderate welding skill—flanges bolt to collector and transition pipe sections, then are welded or clamped in final position once alignment is verified. Compatible with any 3-inch diameter exhaust tubing and suitable for naturally aspirated or forced-induction applications; the steel construction handles turbocharged boost without flexing or leaking at the joint.