lol, my bad, didn't realize I didn't clarify on the exhaust ports.
As for your opinions on the cat-back, I will still respectfully disagree based on my personal findings. My opinions on you still stands. You talk down to people as if they have no knowledge of what they're talking about. I see this on multiple occasions. I'd like to mention one more thing. Were the cat-back tests done on a forced induction vehicle or an N/A vehicle?