Tubing is made of. 065 304 stainless. It has a brushed finish.
Vibrant 10317 Slip-On Merge Collector - 4 into 1 - 2-1/4 in Primary - 4-1/2 in
4 Into 1 Weld On Merge Collector - 4" long - 1.875" Inlet 3" Outlet Stainless
4 Into 1 Weld On Merge Collector - 4" long - 1.875" Inlet 2.5" Outlet Stainless
4 Into 1 Weld On Merge Collector- 4" long - 1.875" Inlet 2.875" Outlet Stainless
4 Into 1 Weld On Merge Collector- 4" long - 1.875" Inlet 2.375" Outlet Stainless