1) Nothing I have posted is is lie. Sometimes there are some inaccuracies, but not in this case.
2) I said nothing about "exhaust mods", I specifically listed a muffler change and then pipe/headers. The two are radically different.
3) Pretty much every other post in the thread corroborates what I said.
4) I probably COULD use some remapping.
Each and every one of us qualify for improvement or in modern parlance, re-mapping.