Even so, Am I lying in what I am saying?

No, I don't think so..............
He can put a Flowmaster on for all I care (and have it soujd like sh!t), and he can by Magnaflows from whoever he chooses, no skin of my nose. But if he wants the best flowing, best sounding, best qualiy - all for the most value for money; you cannot beat Magnaflow.