thats a rough response.LOL! 150 won't happen.Maybe with 4 12's, 4kw and a very well designed SPL box in an SUV.
At best, could probably get it up to 145 with the power you'd be running (assuming you upgrade to that ma or hifonics).But even that's pushing it.
Look at the "post pics of your 150+ set-up" thread, and then you'll have an idea of what it takes to break a 150.