Originally Posted by BX TT3
jb4 a g5
I really do not know. I don't know if there is a way to physically tell from the outside (if you know if a way, please let me know). From what I know about them, you would only need the G5 if you are running meth or bigger turbos or something and I think you can also upgrade to the G5 relatively cheap/easy.
Thanks for looking and let me know if I can help you with anything else!