... ,3,4 .Material: stainless steelRated volume: 5.9L/6.000lbsTWCat026inlet/outlet : 1.75", 2" ,2.25", 2.5", 2.75, " ... conversion efficiency:· CO: ≥96%· HC: ≥95%· NO2: ≥90%· Good function of anti-poisoned and -aging· Small motive loss: ≤3%· Decline sound ... 2%· Structure is simple· Service lifespan: 80,000 hoursHigh dispersion of precious metal· Low light -off temperature· excellent oxygen storage ability ...