**ALL INFORMATION WAS TAKEN FROM vfaq.com**

This is a free mod to do on stock 1g/2g Eclipse GST/GSX that will gain you typically from 1-2psi more boost. The Boost Control Solenoid (BCS) is was controls the stock boost on any 1g/2g dsm. This prevents the car from running strictly off of the wastegate spring. Within the BCS is a small restrictor which restricts mroe air from flowing, thus reducing the boost. This write-up shows how this small peice is removed:

Here you can see the location of the BCS with the intake pipe removed circled in green


Here is a closeup of the BCS


1. Remove the BCS from the vacuum lines

In these 2 pictures you can see the fitting in which the restrictor is located again circled in green



2. Now once you have the BCS out take a screw that can tighten inside the fitting and screw it slowely into the restrictor slightly then pull on it to remove it from the fitting.

Here is a picture of thefitting with the restrictor removed


Here is a picture of the restrictor on the end of the screw


3. Hook the BCS back up and you are done. You have just gained a few more HP for free