Short before / after from stock passive / active solenoids replaced by a MAC 3 Port boost controller.
Spoiler alert:
It is quite a lot better. Better response and more pressure is retained.
Reason for the bigger pressure is the way OEM boost controller hoses are set up.
Basically turbo outlet is connected to the wastegate and even if the solenoid is at 100% duty cycle, there will always be some pressure that goes to open up the wastegate.
The 3 port makes it so that there is no need for this interconnection, ensuring that air is going exactly where we want it to go.
Link to full tune session: • Tuning Lancer Evo X - ...
Timecodes:
0:00 - Intro
3:01 - Wiring
4:31 - Installation
9:23 - Results - Virtual Dyno
15:58 - Outro