The Pair of 4 Into 1 Stainless Merge Collector is a high-performance auto part designed to improve exhaust efficiency and racing performance. With four inlet connections and one outlet, this collector allows for increased airflow and reduced turbulence, resulting in improved engine response and horsepower. Made from durable stainless steel, this collector is a reliable upgrade for automotive enthusiasts looking to enhance their vehicle's performance on the road or track. The inlets measure an ID of 1.75" and the outlet ID is 1.875. There may be some light shelf wear but nothing that can't be polished out. Handcrafted by RCR in Detroit, MI.
