Niki gihinduka:
Guhinduka kwa Cataleti ntabwo ari igice cya sisitemu yimodoka. Igikoresho cyo guhindura kataltic ni igikoresho cyo kweza gihagije gikoresha imikorere ya catalyst kugirango uhindure CO, HC na Nox muri gaze yuzuye umubiri, bizwi kandi nkibikoresho bya katailtic. Igikoresho cyo guhindura katailtike gihindura imyuga itatu yangiza co, hc na Nox muri gaze yambaye ubusa karuboni, azoaden, ihumure rya gaz isukuye, izungura rya gaz isukuye hamwe nigikorwa cyamazi munsi yumurongo wa catalyst.
Dukurikije uburyo bwo kwezwa igikoresho gihinduranya, birashobora kugabanywamo ibikoresho bya kataleti calyitic, kugabanya ibikoresho byo guhinduka hamwe nibikoresho bitatu bya catalytic.