Hello,
Does anyone know what type of exhaust is installed on my 1999 RT/10 that I bought last year?

I originally thought is was stock, until I went to change out the downstream O2 sensors. I found the stock headers had the original O2 sensor sockets plugged and the O2 sensors were installed in the aftermarket exhaust just inside the front of the side sills.

The exhaust is 3" from the stock headers back.

Thanks,

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