First of all, the intake sounded GREAT. Definitely got a better throttle response.
Alot of people complain about the heat soak in the B58 open intake near the turbo (despite AP having a shield). Let's not forget that the intercooler is in the intake manifold. You will not notice a difference... I didn't, and I tried to let it sit all hot.
I have since switch to the Dinan, but it's for the carbon fiber and the use of the intake duct. Otherwise I'd stay with the AP. Install was a breeze except for the seal around the shield didn't want to fit at the bottom, but made it work. Looks great, sounds great.
Hell, I might even switch back at some point....