I like to think of it this way, you spend $3000 on your $30,000-ish Evo and you go quite a bit faster
You spend $16,000 to give your $160,000 Exotic (Porsche being the exception, as they are somewhat easier and cheaper to modiy) to get the same gain in speed as the Evo driver- you spent 10% of the cars value for both to get the same gain in speed.
I fail to see where the problem lies.