SINISTER

So I used to own a G37 and there were plenty of Axel back options. I purchased a Tanabe and it sounded great...

I notice that there is not allot of options for the Z.

I am also reading that they all fit horribly. (sticking out too far, not level etc.)

Is there any good options with the axel back? Or are the only ones that fit well cat back?

THANKS!