I'm looking to learn more abou thte different stages. What all intails stage one and and stage two? I'm personaly trying to do a complete intake to exhaust back after market sysem and a BOV. I am also wanting to learn that does it matter to run all the same barnd such as perrin intake down pipe and full exhasut, will you see the best results that way? Also my turbo is getting old it has 110k on it and im thinking about upgrading the stock 05 turbo to something else im not trying to run super high boost or anything maybe something that will spool really quick and easy but is cheap because i dont want super high boost, maybe a new wrx's turbo like an 09 or something. Suggestions, whatever help i can get!!! Thanks guys.