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Difference in front/rear catalytic converters


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robbypjones2
Novice

May 31, 2023, 4:00 AM

Post #1 of 4 (1700 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
Hammer Time profile image

May 31, 2023, 4:12 AM

Post #2 of 4 (1696 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.



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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 (1671 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
Hammer Time profile image

May 31, 2023, 6:10 AM

Post #4 of 4 (1669 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.







 
 
 






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