Need help

Hello everyone,

I have a beautiful seat Ibiza 6j. Have driven it for about 1 year now, installed a new exhaust and tuned it. The engine makes 150hp stock with the tune it makes 200, now here's the thing. I recently found out the car has no diverter valve, this engine (ea 211 czea) just pushes the build pressure from the turbo back through the turbo (at least that's what I have read) I want to install a cai and a bov because of this. What's your thoughts? Thanks in advance Niels