"Changing one item causes the computer to try, but fail, to compensate."
Actually the computer has a range within which it operates. If it can't compensate, it throws a CEL. Short of that.......
"Even if you manage to increase power, you still have to make sure the driveline and suspension components can handle it."
If I thought that it was so fragile I wouldn't have bought it. I think the M2 can handle a moderate and enjoyable power increase without disintegrating.
"The 2 is already getting the proper amount of air from the factory intake. Increasing your airflow will simply increase your fuel flow to maintain the proper mixture. This will waste gas, and possibly harm the engine and exhaust."
Huh? Sounds like the power potential has simply been increased. How does the proper mixture harm stuff? Actually, its too rich from the factory(performance and fuel economy wise) so it can kick off the catalytic converter. The exhaust is pretty indestructable. Not sure where you were going.
"Mazda, in particular, knows how to get the most from the factory engine while still making sure it's efficient and reliable."
I think you meant Honda. While not bad, the M2 doesn't match Honda power outputs, however it does offer better handling, lighter weight than current Hondas. I've owned both.
"Changing things without the tools or knowledge to balance the new components and reprogram the computer does more harm than good."
Only if taken to foolish extremes. People learn by doing. Saying "Do nothing" only promotes ignorance.
"If anyone wants to proceed, it's their car and money. I am simply suggesting they take a step back, think, and weigh the consequences. I'm just here to help."
So, help. Nothing suggested actually helps....... "If you keep doing that you'll go blind"...... That's OK, I'll keep going until I need glasses.
John