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Nope, I've tried both basic and advance. I can only see the Exhaust folder in the Parameter Navigator. Wired stuff.

Worked like a charm though.

So I found it. I had to search for it in the parameter navigator and it's in a hidden folder called exhaust. This folder doesn't appear anywhere else for some reason. Really strange. Thanks all.

I hope that works. I've never done this so please bare with me.

91585

The only exhaust tab I have is under Engine Diag. There I have the Catalyst Test (which I can disable) but don't have anything else. I assume this is to disable the actual OBD testing of the cats,...

I don't have that option in mine. Under engine and general there is only engine displacement options and that's it.

I removed the cats and disabled COT, but I hate the sound of cold starts while the Cats are warming up. The combination of my exhaust and no cats makes it crazy loud. How do I disable the cat light...

Also, I'm willing to pay if anyone wants to just make me a file. It'll help me figure it out either way.

And by tuning maf properly, I'm assuming you mean because of the LTFT?

I reduced the timing because I was getting KR. I also have trouble going any leaner, if I do, I also get KR. Or are you saying that by modifying those other tables instead the car will figure out...

I used to be a pretty proficient user of HP Tuners back in 2008 or so but have been absent from tuning for the last 10 years and now want to get back to tuning my new 2018 ZL1. The last car I tuned...

Guaynabo, Puerto Rico