[dgc333]

First thing you should do is install a boost gauge so you can keep track of the motor. If you are going to make mods that increase the boost level beyond the maximum stock number you definately will need either an air fuel mixture gauge or an exhaust temperature gauge to ensure the engine is getting enough fuel.

A BOV is not going to increase overall horsepower. It will improve drivability by reducing spool uptime when you are getting on and off the throttle, such as in road racing and autocrossing. It just vents boost pressure infront of the throttle when the throttle is closed when i a high boost state. When you do not have a BOV a pressure spike travels back to the turbo and can/will stop the turbo from spinning, it then takes time to get it back up to speed. With the BOV the turbo continues to spin and will come back up to speed quicker. I am not sure if it even matters with our cars beause from what I have been reading the ECM is doing much the same.

The manual boost controller goes in between the ECM solenoid that it uses to control boost and the wastegate actuator on the turbo. It prevents the ECM from limiting boost below the pressure the boost controller is adjusted for (it's only limited by the exhaust gas velocity wich is based on rpm and engine load). Seems like the people using these are having some issues with the ECM setting trouble codes (i.e. the P1188 that is discussed else where).

If you have limited knowledge I would recomend you wait until mopar comes out with a performace ECM.