Walker® CalCat® Catalytic Converters comply with specific pre-OBDII and OBDII requirements for California and other states with strict emissions standards. CalCat converters feature the right loading of precious metals, the proper catalyst material and design, and a high-technology washcoat, providing enhanced oxygen storage capacity.
Direct-Fit Converters designed for easy installation and OE-style fit.
Thicker, OE-quality flanges.
Body and pipe heat shields to match OE.
Stainless steel body.
Oxygen sensor fittings (where applicable).
Have You Fixed the Problem that Caused your OEM Converter to Fail?
Catalytic Converters are designed to last the life of your vehicle – they do not fail on their own. It is important to fix the source of the problem before replacing your OEM converter. There are three major reasons a converter fails:
OVERHEATED / MELTED
Often caused by unburned fuel entering the converter from a faulty:
Often caused by exposure to emissions substances from:
Leaky Cylinder Head Gasket
Improper Fuel (E85, Diesel)
Worn Piston Ring / Valve Seal
Oil Fouled Converter
Often caused by road debris, corrosion or other conditions such as:
Air Gap Pipe Failure
Flex Pipe Failure
Stripped O2 Sensor Threads
Walker Emissions Control | Diagnosing Catalytic Converter P0420 Code