UNIVERSAL 304 STAINLESS STEEL 6 STEP REDUCER. Profuion Pro-step reducer. Inlet / Outlet (largest to smallest): 75mm / 70mm / 65mm / 60mm / 55mm / 50mm. These universal 6 step reducers are available in Mild steel or stainless steel.
Universal Exhaust Pipe Reducer 50mm - 75mm 6 Step Adapter Performance System
2'' 2.5'' 3'' 3.5'' 4'' Stainless Steel Exhaust Pipe Reducer Connector Adapter
Straight Exhaust Pipe Reducer For 45mm O/D - 42mm O/D - Length = 175mm
Universal Exhaust Pipe Carbon Fiber Cover Case Exhaust Tip Housing 4.5'' 114mm
Universal Exhaust Pipe Carbon Fiber Cover Case Exhaust Tip Housing 4'' OD 102mm