I do want a noticeable growl at lower rpms (driving around town), and it seems like the 18"s might be a little too quiet unless I step on it. I have CF 18"s on order but thinking about changing to the CF 12"s. Knowing that non-res is the loudest set up possible, are you having issues with listening to radio or conversations in the cabin?

I have a non res SS, are you looking for a louder or quiter setup?

Hey I saw you post on the FI exhaust thread. Do you have the CF or SS? I'm debating between the 12" or 18" CF atm