Guide author

Joanna Kłos

About the author

Joanna Kłos writes for Poradnik Katalizatorów. Her articles cover how catalytic converters and diesel particulate filters work, exhaust systems and preparing parts for a valuation.

Her topics include cold starts, catalytic converter markings, photos for a valuation and the differences between soot and ash in a DPF.

Articles by the author

Knowledge base

Exhaust system without a “cat”

What do we need a cat for? A catalytic converter resembles a metal can. Even if quite inconspicuous when viewed from the outside its interior is very valuable.…