Got it back this am - codes cleared out. Runs great and no new CEL - 60 plus KM put on since installation. A few start cycles etc. In and outta Zmode with the valves cycling - all great since adding the spacers/mini cats. The tech double checked everything for system leaks as well. Gaskets etc.

I also stopped by my GM dealer - spoke with the shop manager that deals with warranty - they have zero concerns with the Cats being installed.

Obviously they won’t warranty from the Cats - back but everything forward of that - no issues he said. He even had a look at them and got in there with his flashlight. Said “good to go” fwiw.
 
Got it back this am - codes cleared out. Runs great and no new CEL - 60 plus KM put on since installation. A few start cycles etc. In and outta Zmode with the valves cycling - all great since adding the spacers/mini cats. The tech double checked everything for system leaks as well. Gaskets etc.

I also stopped by my GM dealer - spoke with the shop manager that deals with warranty - they have zero concerns with the Cats being installed.

Obviously they won’t warranty from the Cats - back but everything forward of that - no issues he said. He even had a look at them and got in there with his flashlight. Said “good to go” fwiw.
Thanks for the update! These cats have been added to my mod list.
 
How was the install, I did 2M sport cats twice on Stingray's but also did aftermarket catback at the same time so in a way easier since access was simple with bumper off and not needing to wedge the cats in between manifolds and mufflers
 

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