• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Can i just strait pipe?

The sim can work on 97-03 cars, but I was just saying that they say the 01-03 cars with the cat diag, it might not always work.
I dont have legit proof of this, buts its from what I believe I've read over time.
 


Or get someone to add the parameter in Tiny Tuner so you can take the cat test out.

Not sure why this has not been done already. Unless it doesn't exist but I highly doubt that.
 
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