Originally Posted by e92_m3
Hmmm, power delivery would be a lot better IMO if the cat was deleted. Imagine that, no more restrictions. May sound better as well. I would take a free-flowing exhaust any day!
However, there might be drawbacks when the cat is deleted:
1) Maybe too loud for some.
2) The cat should be re-installed when it's time for a smog check.
Oh, I'm all for free flow. Just that our cars will be cat less and some people don't like that