2-1 S.S. Merge Collector s 3in Inlet ID 4in Merge

The 2-1 S.S. Merge Collector with 3-inch inlet ID and 4-inch outlet diameter is a precision stainless steel exhaust component designed for serious engine builders and performance enthusiasts looking to optimize exhaust scavenging and flow dynamics. This merge collector is essential for maximizing horsepower and torque across the RPM band, making it ideal for street machines, track cars, or forced-induction platforms.

Constructed from mandrel-bent stainless steel, the VIBRANT PERFORMANCE 2-1 merge collector features smooth internal geometry that promotes laminar exhaust gas flow and reduces backpressure without sacrificing scavenging efficiency. The 3-inch inlet diameter accommodates dual runner configurations, while the 4-inch outlet diameter provides proper sizing for downstream components like catalytic converters, resonators, or mufflers.

This component is particularly beneficial for builders constructing custom exhaust manifolds or turbo manifolds, ensuring a reliable and efficient exhaust system. The compact 7 x 4.8 x 9.6-inch footprint and 2.3-pound weight facilitate straightforward installation without adding unnecessary mass to your vehicle.