4 into 1 Merge Collector 7/8 to 3.5in

The 4 into 1 Merge Collector 7/8 to 3.5in from Vibrant Performance is a purpose-built exhaust header component designed to consolidate four individual runner tubes into a single, larger diameter outlet. This collector is essential for high-performance engine builds that demand efficient scavenging and reduced backpressure. Whether you're building a street performance engine or preparing a competition vehicle, a quality merge collector directly impacts power delivery, throttle response, and overall exhaust flow characteristics.

This collector features input ports sized at 7/8 inch per runner, merging them into a 3.5-inch diameter outlet. The engineering behind this design focuses on minimizing turbulence and flow separation at the transition point—areas where poorly designed collectors create pressure waves that rob horsepower and create reversion issues. Vibrant Performance constructs this collector with durable materials capable of withstanding sustained high-temperature exhaust gas flow, ensuring longevity through aggressive driving cycles and extended power runs.

Experienced engine builders and tuners rely on quality merge collectors when upgrading from stock manifolds to full header systems. The compact design allows fitment in tight engine bay configurations while the weight of 3.05 lbs keeps overall system mass down. This product is ideal for those looking to enhance their vehicle's exhaust performance and efficiency.