Difference on MAP Sensors?

[4g63telantra]

I been reading up on what MAP sensor to use on my car and see so many MAP sensors.

What are some difference from lets say a 3bar, 3.5bar, GM, AEM etc

Ill be running about 32psi of boost and just wanted to make sure I pick up the right one before I go ahead and install it.


Thanks

 

[tom04841]

if your going to run 32 psi, you'll need a 3.5 bar sensor. 3 bar is only good up to @ 29 psi