Inlets: 51mm. Wall thickness: 1.5mm.
4 into 1 Flower 1.75" 45mm 1 3/4" to 3" OD Exhaust Manifold Collector Merger
Patriot Exhaust H7246, 2 Pack Zinc Steel Collector Reducers - 1Pr 3-1/2In To 3-1
1 3/4" Exhaust Y pipe Piece 2 to 1 Divider Section Stainless Collector 45mm 1.75
1 1/2" 1 3/4" Exhaust Joint Divider Y Piece Repair 38mm to 45mm Car or Bike
