Mac 4 port solenoid boost valve pwm 46A-AA1-JDBA-1BA

It works really good and I prefer these over a three-port because you can run a really soft wastegate spring and control your boost from nothing all the way to max output of the turbo

A+

just as i wished

Fairly priced, works great

Works great so far.

My HAAS VF4SS mill developed an issue where it would randomly get an alarm about problems with the tool changer pocket and stop right in the middle of a job. I tracked it down to an air valve that was not fully activating. Looked on HAAS website and the valve is $155. Ok, that's not too bad. Just did a quick search on Amazon and the same valve popped up for less than $50. It arrived the next day and I installed it. Installation was straight forward and without drama. It's been a week since the installation and not one error yet vs one or two per day previously.

Looks like a genuine Mac 4 port valve. Only giving it 4 stars though because it came with no fittings and all the other kits I see include them.

Did what I needed it to do on my boosted setup. 3 port didnt work for my application but the 4 port did.