3.5 45 Deg Long Radius Elbow

The BOYCE 3.5" 45 Degree Long Radius Elbow is a precision exhaust or intake piping component designed for custom automotive builds, turbo installations, and engine bay modifications where directional flow changes are critical. This component is essential for builders who demand smooth airflow transitions and minimal pressure loss in their systems.

Long radius elbows are engineered with a gradual 45-degree bend that preserves flow velocity and reduces turbulent eddies at the transition point—critical for both intake efficiency and exhaust scavenging. The BOYCE LR3545E features a 3.5-inch pipe diameter, making it compatible with larger-displacement engines and turbo systems where performance is paramount.

This elbow is ideal for experienced fabricators, performance shops, and dedicated enthusiasts building LS-engine swaps or twin-turbo systems. Its long radius design allows better expansion and contraction during thermal cycling while maintaining structural integrity under boost or high exhaust temperatures.