Merge Collector 2-1/4in Primaries 4in Outllet

The Stainless Works Merge Collector 2-1/4in Primaries 4in Outlet is a premium exhaust manifold designed to consolidate multiple primary runners into a single outlet for maximum scavenging efficiency and power delivery. This component is ideal for serious automotive enthusiasts and performance mechanics who demand reliable header construction in their builds.

Manufactured from high-quality stainless steel, the Merge Collector features 2-1/4 inch primary tube sizing that efficiently consolidates four separate engine runners into a single 4 inch outlet for connection to your catback or custom exhaust system. The merge design utilizes proven collector geometry to minimize turbulence at the transition point, allowing exhaust pulses to blend smoothly, which reduces exhaust reversion and promotes scavenging across the RPM range.

This collector is particularly beneficial for applications where performance is a priority, such as custom engine builds or high-performance vehicles. Its stainless construction resists corrosion and thermal cycling stress, ensuring longevity even in high-heat engine bay environments.