4 to 1 Merge Collector, 304 SS Cast, 3" Outlet

4 x Runners: 1.65" I.D., 1.875" (1 7/8") O.D. 5-6mm Thickness Wall.Fits 1.75" SS Tube

Merged Into One 3" O.D. Outlet

Total Length: 5.7"

Sold As One Piece