4in (101.6mm) O.D. 60 de gree Mandrel Bend

The 4in (101.6mm) O.D. 60 degree Mandrel Bend from Vibrant Performance is an essential exhaust tubing component designed for builders and fabricators who demand precision bends without kinks or collapse. This mandrel bend is engineered to maintain consistent wall thickness and internal diameter throughout the bend radius, critical for optimizing exhaust flow and system durability. Mandrel bends are the industry standard for custom exhaust systems, turbo piping, and high-performance intake applications where fluid dynamics and structural integrity directly impact engine efficiency.

The 60-degree bend angle provides a sharp directional change while the mandrel-formed construction prevents wall thinning on the inside radius and buckling on the outside—issues common with simple bends. At 4 inches (101.6mm) outside diameter, this component accommodates larger exhaust or intake flow requirements typical of turbocharged and naturally aspirated high-displacement engines. The precision manufacturing ensures a tight, uniform bend that integrates seamlessly with flanges, couplings, and other exhaust components without requiring secondary sizing or correction.

Custom exhaust and intake system builders, performance shops, and restoration specialists rely on this mandrel bend for applications ranging from street performance builds to competition vehicles. The 4-inch diameter makes it suitable for systems stepping up from 3.5-inch primary tubes or as a transition piece in dual-exhaust configurations. Installation is straightforward—weld or bolt the bend between straight sections or manifold outlets using standard gasket and fastener practices. This component represents Vibrant Performance's commitment to delivering OEM-equivalent precision in the aftermarket, ensuring your system maintains pressure integrity, minimizes turbulence, and supports maximum horsepower delivery.