Sup guys.
I changed my four brake system 9 months ago.
I changed the rotors, and the brake pads.

But today, I heard LOUD sound from pass side, and I found out.
The pass side brake, THE ENTIRE brake pad is GONE... I mean it's not GONE GONE..but the part where it use to brake is GONE. all 10mm is gone...but the other side (driver) still have about 90%. As I said, only 9 months man. WTF?? any input why?
Did I installed them wrong? anything to remind of?

ALso, since now it's fucked up, I want to upgrade to GSX brake.
Just the front of course.

Can you guys tell me a good place that I can get them cheap.
Just the GSX caliper is fine. (used is fine)
Coz I can get the GSX rotors and brake pad cheap.

Are that 3 things above enough for conversion?
But my main questions are:
1) what's up with my brake pad? (wear out so soon) (Only pass side)
2) Where can I get GSX caliper cheap? (used is fine)

THANKS GUYs.
Now I can't even drive my car, ONLY 3 brakes.

THANKS.
GIl;(