Hi guys. Me and my neighbour recently changed my front pads. I didn't buy vx ones but just normal one from local motor factors.
All we changed was the pads and applied copper grease to the back.
I'm getting a horrible vibrating type of feeling under my foot when braking at low speed.
I've read on here about shimmed pads? Looked on the net and are the shims the metal clips which are at the top and bottom of the caliper?
If they are, could it be that the new pads don't fit these aswell as vx ones

Ever since I got my 1.6vvt it vibrates when its hot quite heavily I can feel it in the seat and the steering wheel, plus it knocks for a second or so everytime i stop completely or change from d to r and vibration increases also when ac is on I only did 8500 km its brand new. Dealer told me its bad fuel even though I only use 92 octane from trusted stations. any ideas?