John, EBC red stuff work nicely with the WRX 4 pots I've found. I'm on my 3rd set of their front pads. I could get about 10-12K with 3 trackdays, glasgow runs, september run, laps at alford, visit to crail etc. out of a set of them, if not more.
Had to change front discs this time around though as 1 set of stock pads and 2 EBCs had taken their toll. Also finally wore out my rear pads so went for EBCs on there too.
Some people have had issues with them, but they really need to be bedded in properly with gentle use for a few hundred miles. Can't just storm out the garage and blitz them on a country road blast straight away.
Oh and a set of fronts are about £110 or so? I can't remember as I got a lot done last tuesday and didn't look at the individual prices.