1.375in O.D. 90 Degree Mandrel Bend

The Vibrant Performance 1.375in O.D. 90 Degree Mandrel Bend is a precision exhaust fabrication component designed for custom intake and exhaust system builders who demand professional-grade results. This mandrel bend allows exhaust technicians and performance enthusiasts to create smooth, tight-radius bends without kinking, collapsing, or compromising internal diameter—critical for maintaining optimal flow characteristics in tuned engine builds.

Mandrel bending technology prevents the tube wall from collapsing inward during the bending process, which is especially important in high-flow applications where even minor restrictions can reduce horsepower and throttle response. The 1.375-inch outer diameter specification fits a wide range of aftermarket piping systems, and the 90-degree configuration addresses the most common directional changes required in custom exhaust and intake layouts.

This component is ideal for professional fabricators, serious DIY builders, and performance shops constructing custom headers, turbo downpipes, and other exhaust components. The mandrel bend's smooth interior radius maintains consistent flow velocity and minimizes exhaust scavenging losses, ensuring that your tuned engine realizes maximum power potential without backpressure issues that plague poorly fabricated systems.