what is a map clamp

 

for what i know it is some kind of a system that taps into a wire that comes off you MAP sensor "manifold absolute pressure sensor" is what it does is it will trick your computer into running more boost but with that you will need to run more fuel

 

Kinda sorta allows you to change the voltage in the MAP itself.....confusing the PCM into thinking your at a lower boost than you really are...so you can run higher.

 

thanks