# Obscure sources for GM catalytic converters? **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [October 18, 2024, 7:14pm UTC](https://community.cartalk.com/t/obscure-sources-for-gm-catalytic-converters/197663 "2024-10-18T19:14:51Z")\ **Posts on this page:** 1\ **Showing post:** 1
**Author:** ![Todd52](https://avatars.discourse-cdn.com/v4/letter/t/97f17d/32.png) [@Todd52](https://community.cartalk.com/u/Todd52)\ **Post date:** [October 18, 2024, 7:14pm UTC](https://community.cartalk.com/t/obscure-sources-for-gm-catalytic-converters/197663/1 "2024-10-18T19:14:51Z")
This is a companion question to my P0420 post here: [Understanding P0420 code on 2008 Pontiac G6 GT](https://community.cartalk.com/t/understanding-p0420-code-on-2008-pontiac-g6-gt/197558/1) . I am curious if anybody can recommend sources for GM catalytic converters beyond GM itself and the usual web search hits? My friend will likely need to replace the bank 1 cat on his 2008 Pontiac G6 GT convertible 3.9L engine, the problem being there are no longer GM cats to be had anywhere in the GM system, and the only aftermarket I can find is from Walker and designed for the CA, NY, CO, and ME markets, which would be overkill and pricier than what is necessary for us in PA. The annual PA state inspection mandates that the problem be addressed. I plan to start by replacing the two O2 sensors on that side, one at a time, but when it comes to the cat, I am looking for other options. The garage that originally inspected the car mentioned he gets his cats (and similar items) from 1-800-EXHAUST…or something like that. Nothing like this appears on web searches, and this is the kind of obscure source I’m looking for. I expect there are more. The garage that gave us a second opinion said he could get cats (he wanted to replace both), but it was unclear if these were GM or aftermarket. He didn’t elaborate on the make or the source. Can anybody help? --- _[View the full topic](https://community.cartalk.com/t/obscure-sources-for-gm-catalytic-converters/197663)._