Engine/Transmission/etc reliability + FI

[awkwardturtle]

Perhaps I'm blind, and that's very possible, but I couldn't find much on here about this topic.

Right now I drive a turbocharged 2007 Civic SI, and it's a rolling timebomb. The motors in those cars can handle boost very well, but my transmission is eventually going to shear a gear at these power levels of ~440 whp. They tend to last about 2 years for the lucky ones, 4 months for the reckless ones.

In my next car, I plan on making big power (500+ whp), and I want to make sure I buy a car that can actually sustain these power levels without complete overhauls.

So, I'm wondering what the limits of this car is in terms of FI. I see a lot of 500+ whp builds - can the engine, transmission, axles, etc sustain this kind of force for a decent amount of time? On my car, our only options really are to spend 4k+ on PPG/Albin gears. I can't even imagine what gears for this car would cost, and I don't really want to find out!

Thanks