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Search Auto Parts Search Difference in front/rear catalytic converters Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Exhaust System Repair robbypjones2 Novice May 31, 2023, 4:00 AM Post #1 of 4 (534 views) Difference in front/rear catalytic converters Sign In 2016 Chevy Impala Ltz 3.6 v6 140000k Catalytic converter broke away from bracket. I ordered new replacement however, new one is the rear one (firewall side) is there an issue with putting it on the front side or just return and replace? Hammer Time Ultimate Carjunky / Moderator May 31, 2023, 4:12 AM Post #2 of 4 (530 views) Re: Difference in front/rear catalytic converters Sign In There is definitely a difference between a pre-cat and the actual cat. Not interchangeable. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. robbypjones2 Novice May 31, 2023, 5:51 AM Post #3 of 4 (505 views) Re: Difference in front/rear catalytic converters Sign In These are completely separate,opposite banks of cylinders. Both have same o2 sensors,same mounting hardware etc. The rear bank one is round while the front bank is flattened. They’re not connected to each other just the exhaust “y”. Hammer Time Ultimate Carjunky / Moderator May 31, 2023, 6:10 AM Post #4 of 4 (503 views) Re: Difference in front/rear catalytic converters Sign In They still have different designs for a reason. Why would you possibly want to instal a known wrong part? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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