Hi guys, wondering if someone can point me in the right direction. I have a version one wrx import, 4 pot fronts and 2 pot rears. The car failed its mot on low front pads, which I changed. It felt fine at first, but a vibration developed shortly after when breaking. Its now no longer a vibration but a hard shake and is almost undriveable. Few things I should point out, There was a couple of siezed pistons in my front calipers which I've sorted, I didn't change the discs when I did the pads as they looked OK apart from a grove in the front drivers side. Also I believe the rear tracking is out as I've noted the inside edge of the tyres on the back have worn down, so it needs two new tyres on the back. The shaking comes through the whole car not just the steering wheel, and seems to get worse when warmed up. I'm guessingiI've probably got warped discs on front but just wondering if anyone has any suggestions what else it may be. Any advice will be greatly appreciated.

 

If calipers were seized heat could have warped your discs

 

Plus worn discs and new pads is a poor choice. Change both.