Camaro/Firebird LSX 2 Bar MAP Sensor, when going with forced induction you always need to change over from MAF to Speed Density which you will need this MAP sensor. N/A cars should change over the Speed Density after 480rwhp.
Note: The 2 bar MAP sensors are good up to 15psi of boost, anything over that you will need to switch to a 3 bar MAP (If you need a 3 bar MAP give us a call for price).