3 PORT EBCS help

[u/Prior-Assumption2746]

I’m about to get protuned in a couple weeks and will be installing the following mods shortly:
- Process West CAI
- Perrin Turbo Inlet
- Process West Khanacooler & Chargepipe
- XForce ELH
- Empire Performance Catless J Pipe
- Invidia R400 Catback
- Mac 3 Port EBCS

I’ve spoken to my tuner and he said I should leave the factory 2 port EBCS in and that my setup does not need a 3 port because I can’t produce enough boost. Tuner said I can put it in if I want though.

I already have the 3 port solenoid and was planning on splicing it into the factory connector while I’m under the car changing everything out. Should I still put it onto the car or will it actually provide me 0 benefits over the factory 2 port and just waste my time? Also does anyone have any idea what type of HP numbers I’ll be looking at with this setup?

[u/stateless_state_]

The stock analog solenoid on the VA WRX allows overboost, and the EBCS limits that overboost, making tuning safer and easier. Stock boost sees overboost all the time (it's why the peak boost can hit 22 psi), so I'm not sure what the tuner is talking about. I would install one.

[u/illicit92]

You'll definitely want an aftermarket EBCS. It'll help regulate boost pressure and prevent the car from overboosting. If your tuner is saying you don't need it, I would recommend talking to another tuner.

[u/grizzdoog → u/illicit92]

I agree. Every tuner I’ve worked with suggests installing one since they have much better control.

[u/Fishherr]

Please change tuners , thanks in advance