Ok,
I honestly feel kind of bad for you because I've once been in the "newbie" shoes. Back then, google and "the internet" were my best friends and search tools.
Though you have registered on the best SR forum to decide what your best options are, I think you need to invest a little reading time to understand what you're about to endure.
I see you're familiar with chassis codes both from your forum name and what car you announced you bought. P11 and P10 are also chassis codes for another SR equipped car...the Infiniti G20's.