Catalyst types
Metallic catalysts
A substrate made of thin rolled metal foil. Lighter precious-metal content, so a lower quote than ceramics.
A metallic catalyst has a substrate made of thin steel foil rolled into a spiral and coated with precious metals. It is more mechanically resistant than ceramic but contains less Pt/Pd/Rh, so the quote is lower. Often used in sports cars, motorbikes and some diesel variants.
How to identify
- Substrate doesn't crumble — you can compress it
- Visible metallic structure (windings)
- Heavy for its size
- Often physically smaller than ceramic
Most often found on
- Renault Megane, Clio (dCi engines)
- Volvo V40, V50 (D2, D3)
- Some sport BMW and Audi variants
- Motorcycles (Honda, Yamaha, Kawasaki)
Precious metals
Pt and Pd dominate, Rh in smaller amounts. Exact proportions depend on the substrate manufacturer.
Indicative quote
PLN 220–580 per piece.