HEEELLLP GUYS

IM NEW TO THIS SITE, im buying a mazda3 and wanna get a turbo charger
however

Most aftermarket turbocharger kits for naturally aspirated cars recommend running no more than 6-8 psi to prevent engine damage.

AFTER READING THIS IS THE GREDDY TURBO CHARGER 16GB TO MUCH FOR THE MAZDA 3?
AND HOW MUCH POWER WILL THIS PROVIDE? TO MY EXISTING 148 HORSEPOWER?
AND WHAT OTHER STUFF MUST I GET AFTERMARKET PARTS LIKE A WASTEGATE, INTERCOOLER ICEVEX, BLOW OFF VALVE? DUEL DRIVE WHAT IS THAT?