2-1 S.S. Merge Collector s 1.875in Inlet ID 2.25i

The Vibrant Performance 2-1 Stainless Steel Merge Collector is a slip-on exhaust merge collector designed to consolidate dual primary tubes into a single outlet, optimizing exhaust scavenging and flow characteristics for mid-range torque and performance gains. This 2 into 1 merge collector accepts 1.875-inch primary tubes and transitions to a 2.25-inch outlet, making it a direct upgrade path for naturally aspirated and lightly boosted applications seeking improved exhaust efficiency without requiring full header replacement.

Constructed from stainless steel in natural finish, the collector resists corrosion and thermal degradation across varying climates and exhaust temperatures. The merge collector design reduces backpressure by converging two separate primaries into the outlet diameter, improving volumetric efficiency—a critical factor for carbureted, naturally aspirated, and supercharged engines where scavenging losses directly impact power output and throttle response. The slip-on configuration allows installation onto existing primary pipes without requiring welding or manifold replacement, making this an accessible upgrade for street cars, weekend warriors, and track enthusiasts.

This merge collector suits builders optimizing mid-sized V-8s, small-block V-6s, or turbocharged four-cylinder platforms where dual primaries feed a single downpipe or turbo inlet. The 1.875-inch primary sizing targets engines in the 350–550 horsepower range; larger displacement engines may require oversized primary diameters for optimal scavenging. Weighing 1.9 lbs, the collector adds minimal rotating mass while delivering measurable improvements in exhaust scoops and midrange power delivery—benefits that compound when paired with a matching downpipe or performance muffler system.