Have put on 4pot fronts and 1 pot rears on the rx, now looking for proportioning valve to suit

Mate I wouldn't bother. Waste of time, money & energy. Race cars are running same setup, so for everyday street driving I wouldn't bother. My 2 cents.

You mean it doesn't need the valve or don't bother switching the brakes, cos brakes already done!


using the Perth-WRX mobile app

Don't worry about the valve I run 4 pots on front and singles on rear of my rs no issues whatso ever .

I didn't swap the proportioning valve either when I did my 4/1 swap from single piston fronts and drum rears, pulled up on a dime when I had to emergency brake a few times. I probably would do it if I was doing the conversion again just in case it is necessary though.

Thanks guys. Sourced this and new master cylinder. Thanks all.