Stagea Arx

[Jules740]

Hey guys new to these cars so forgive me if I sound like a massive noob, tried using search but info for these things is a bit all over the place so I was hoping someone could point me in the right direction, my plan was to go a turbo back exhaust, hdi cooler and raise the boost up a couple of psi(if that's possible in stock form)

any other ideas or advice would be sweet! Thanks