Buying guides
How much does a replacement catalytic converter or DPF cost?
Typical UK prices for a replacement catalytic converter, DPF or combined unit, from our own catalogue, and what makes the price go up or down.
Buying guides
Prices, part numbers and choosing the right replacement for your vehicle.
Looking for the basics? Our Help & Advice guides cover how catalytic converters and DPFs work, fitting, the law and warranty.