Inlets: 45mm. Wall thickness: 1.5mm. Outlet: 58mm.
3 into 1 Exhaust Manifold Merge Collector 45mm 1.75" Tubular 6 Branch merger v6
Vibrant 10334 Slip-On Merge Collector - 3 into 1 - 1-3/4 in Primary - 2-1/2 in
Vibrant Performance 10309 Stainless Steel 4-Into-1 Exhaust Collector 2in Inlet
Collector Star - 3 Into 1 Header 1 3/4" Primary Tube
Collector Star - 3 Into 1 Header 1 1/2" Primary Tube