3in To 2-1/2in Collector w/O2 Sensor Bung 3 Bolt

The 3in To 2-1/2in Collector w/O2 Sensor Bung 3 Bolt from Hedman is an essential component for custom exhaust manifold systems, designed to transition from larger primary tubes to a single collector neck. This reducer collar is ideal for builders looking to optimize performance in street engines, turbo setups, or custom exhaust systems.

This collector features a 3-bolt flange design that ensures a secure seal with your manifold or primary tube assembly, effectively preventing exhaust leaks that can hinder performance. The integrated O2 sensor bung allows for direct mounting of oxygen sensors, enhancing tuning and emissions compliance. Its stepped interior geometry minimizes turbulence, preserving exhaust scavenging characteristics for improved engine efficiency.

Ideal for street performance builds and turbo manifolds, this collector is designed to handle high-temperature exhaust flow while resisting cracking under thermal stress. Builders and enthusiasts will appreciate the structural integrity and performance benefits this collector provides, making it a valuable addition to any custom exhaust system.