2-1/2 x 4-1/2 Merge Collector

The DYNATECH 2-1/2 x 4-1/2 Merge Collector is a slip-on exhaust merge collector designed to consolidate four 2.5-inch primary tubes into a single 4.5-inch outlet. This component serves as a critical junction point in custom exhaust systems where multiple runners must flow into a unified downstream passage. Built from durable steel construction, it is ideal for high-performance applications where proper scavenging and flow distribution directly impact engine output.

The collector's four-into-one configuration is engineered to balance cylinder scavenging while minimizing turbulence at the merge point. The 4.5-inch outlet diameter provides adequate transition from the primary tubes without excessive backpressure, which is critical for applications running carbureted or naturally aspirated engines. The black paint finish resists thermal degradation in high-heat environments, ensuring longevity and performance.

This merge collector is suited for street and competition vehicles running multi-carb setups, custom V8 and V6 builds, or any application requiring clean consolidation of four individual exhaust runners. Hot rodders and engine builders will find this component beneficial for optimizing exhaust flow and enhancing engine efficiency. Its compact footprint accommodates tight engine bay installations, making it a versatile choice for various builds.