Catalytic Converter Warranty Policy


Exhaust pipes are warrantied for one (1) year from the date of purchase against manufacturing defects only.


Our catalytic converters have been designed and manufactured to meet Federal EPA and/or CARB emissions requirements for vehicles specified in its Vehicle Application Catalogues. When the catalytic converter is properly installed, and the vehicle is maintained correctly, the catalytic converter is warranted to meet such requirements for five (5) years or 50,000 miles (80,000 km) on converter shell and end pipes, whichever occurs first, and for 25,000 miles (40,000 km) for converter emission performance.

This limited warranty is conditional upon the catalytic converter being properly installed on the vehicle for which it is specified in the Vehicle Application Catalogue and the vehicle being maintained in proper operating condition with all emission control equipment connected and operating according to the vehicle manufacturer’s specification. The warranty does not cover other exhaust components. The manufacturer assumes no liability for catalytic converter failures caused by improperly maintained engines or physical damage to the converter.


  • Fractured Substrate: Caused by outside forces, including road damage or ballooning of the converter shell due to overheating or thermal shock damaging the substrate.
  • Melted Substrate: Caused by extreme temperatures that the converter was not designed to operate in. Excess fuel is the main culprit here, most likely related to faulty oxygen or temperature sensors or other fuel delivery and fuel trim-related issues.
  • Heavy Carbon or Soot: Heavy carbon indicates a poorly maintained engine in need of an engine de-carbonation service. Heavy soot indicates excessive oil use or other contamination inhibiting the converter’s ability to do its job.
  • Over Heating: Indicated by the bluing or purplish colouring of the converter. This is an indication of fuel trim issues over time, causing the converter to deteriorate. In this case, sluggish or mal-functioning upstream O2 sensor(s) are typically the culprit.
  • Physical damage: In the case where there is evidence of any damage caused by improper installation, negligence, road debris, road hazard and off-road use, the warranty will be void.


IMPORTANT NOTE: All defective product returns must have proper documentation submitted with the return. All product returns that do not meet the requirements will not be approved for credit and will be returned to the customer, and the customer will be responsible for all related freight costs.

  • A copy of the catalytic converter installation bill with date and mileage (including any other work that was done to the vehicle)
  • For US customers: photo of the vehicle's emissions sticker
  • Detailed description of the problem with a valid reason for the failure of the part. “Defective” or “no good” are unacceptable reasons and may result in the claim being rejected.
  • Failure to submit all the proper documentation may result in the return being delayed or rejected.
  • Any item found not to be defective upon examination will be invoiced and returned to the customer.


  • A copy of the catalytic converter installation bill with date and mileage (including any other work that was done to the vehicle)
  • For US customers: photo of the vehicle's emissions sticker
  • Printed Detailed Diagnostic Report (not simply code readings of PO420 or PO430, but detailed diagnostics by an accredited auto shop.) These readings must be obtained from a scan tool with the scanner set in generic mode.
  • Readings are to contain LONG and SHORT fuel Trim readings for BANK 1 and BANK2 for 6 and 8 cylinders.
  • Readings are in percentiles and/or need to be reading at IDLE and at 2500 RPM.
  • Mass Air Flow Sensor readings (gm/sec.) This reading needs to be at IDLE.
  • Readings of all Oxygen Sensors Pre-cat and Post- Cat. These can be freeze frame images of Oxygen Sensors.