Definately get the PG one. I have tried all 3 inlets (CPE,COBB,PG). The cobb / cpe are the same pretty much. They didn't fit well at all with my injen CAI. The mouth where you connect the intake to the inlet is huge on the COBB inlet. So they provide this metal "coupler" to use as a transition from the huge inlet to the small intake. It adds about 2 inches of length to your CAI which makes lining up the intake bracket a real PITA. It was such a bad fit that I returned it. Bought a PG inlet and it fits much easier. Install was a bit easier as well. Also your car will sound better with the all metal intake

.