Downpipe Advice
I am replacing my downpipe as I have mentioned in an earlier thread. I will only be replacing the downpipe at this time, and not any other part of the exhaust stream, and I will still need to run with the cats installed when I do change the entire system. But, in the meantime, I am looking at a 3" vs a 3" divorced downpipe. Will I notice a performance difference between the two with the rest of the system stock? If so, how many HP do I stand to gain from each?
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