exhaust catalyst for Automotive & Motorcycle Filter 97% smoke particulate Euro II,III,IV Can be custom-made Features of catalyst converter forAutomotive & Motorcycle exhaust system: 1. High quality of 409 stainless steel shell(ss304 is also avaialbe), mirror polished.2. 400cell/sqt(300cells, 600cells, 800 cells are also available)3. Inside catalyst (Pt, Pd,Rh+rare earth) coating on honey combed ...