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30% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ30 in Cart.

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Receive Up To 30% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ30 at checkout to receive 30% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, CV Axles, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Chassis, Shocks & Struts, Outdoor Lifestyle, Towing, Air Filters, Oil Filters, Bearings & Seals and Engine Parts.

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 10/1/17.

Receive 25% Off Wagner branded brake parts with your online purchase. Use promotional code: WAGNER25.

Receive 10% Off Select Champion, MOOG and FelPro branded products with your online purchase. Use promotional codes: CHAMP10, MOOG10 and/or FELPRO10.

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Catalytic Converter



Catalytic Converter

The catalytic converter is a vital part of your vehicle emissions control system. Its job is to reduce toxic air by converting harmful pollutants into less harmful emissions, such as water, carbon dioxide and nitrogen.

What is a Catalytic Converter and how does it work

How Does it Work?

  • In the catalytic converter, there are two different types of catalysts: a reduction catalyst and an oxidation catalyst.
  • The catalytic converter works with your vehicle’s Powertrain Control Module (PCM) and other emissions control devices.
  • It has no moving parts, and is designed to last the life of your car.

How is it Made?

  • Stainless steel body
  • Monolithic free-fl owing substrate
  • Body and pipe heat shields
  • Catalyst cushioning mat
  • Oxygen sensors

Why Does it Fail?

  • Overheated, melted or broken converters.
  • Coated or oil-fouled substrate
  • Structural damage from corrosion, thermal shock, metal fatigue, stripped oxygen sensor threads or fl ex pipe failure

What are the Symptoms of Failure?

  • No acceleration when gas pedal pushed
  • Drop in gas mileage
  • Engine quits after a few minutes

What are the Implications of Failure?

  • Your vehicle will stall out and be unable to drive, due to inevitable engine failure.

How Difficult is the Install?

Difficulty Rating:

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