I am about to purchase a boost controller but I do not know if I should go electronic or manual. And which brand has the best over all performance? I see the Hallman makes a good manual. I was also looking at the Turbo XS hp manual controller also. But what about say the Grimmspeed one that plugs straight to the OEM harness?

 

Don't forget about the egr solenoid and gm one...

 

you are talking about three different things

grimmspeed's device is used with ecu controller boost

an ebc just gives you more functionality and better temperature change self-adjustments

a mbc is the tried and true simplest way to control boost

you need to do more reading

closed...