New Member potential buyer

[James tittensor]

Hi all

Newbie here just lookin to find out a little more about Evos.
I want an evo x eventually (next 2 years... )
Want to know what's involved in modifying these cars... what kind of budget I need to set aside and how easy it is to get the the big power..
400bhp
500bhp
600bhp
Etc

My current ride is a 2011 honda crz...

Thanks
James