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Loss of power / o2 code

Melvin54

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Joined
Nov 3, 2018
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Location
Illinois
First Name
Rusty
Vehicle(s)
2016 Mustang GT
Hey all, i am new to the forum and needing some input. If something like this has been posted please guide me to the correct thread or area to post.

In my attempt to get some faster et's, I installed a 2step like an idiot before deleting the cats on the exhaust. Launching was great but now the car is feeling real sluggish after 10-15 launches. When I now go to wot at high rpm(6000 or more) it throws a o2 sensor code (i cleared the code without recording the actual number, will get it when I test next). Thoughts on it being a plugged cat? I think the excess fuel has plugged the cat but would like another opinion before I go to long tube headers and get rid of the cats. Car will run ok and not throw codes under normal driving, just loss of power. Only throws the code at wot at high rpm (6000 and over). I know I am an idiot, please be gentle and don't remind me.

Thanks for any help.
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