Is this so in any case?
So if I got 20s (I have 18s), how do I minimize this this so called "break failure". I mean, for me atleast, I enjoy coming to a compete stop behind vehicles.. If I got certain tires, calipers, break pads (which, aren't they calipers?) The disk that the caliper rests on, can I keep my assurance of not hitting cars?
For each inch you add to your rim diameter, take about a bit off the profile of the tire to stay as close to the stock overall diameter as possible.
^^^this yes this is true unless you don't care about ur spedo reading right
and want a monster truck or want huge tires for some reason or unless you want ur rims so big they are larger in diameter than the original tire and wheel combo such as going from 15"s to 20", 22", 24"s ect.
if your tires aren't within about 3% of the original overall diameter, you run an increased risk of BRAKE FAILURE.
^^^I have heard of the 3% rule but with newer cars and 4 wheel disk brakes you should be good unless ur making a monster truck
What G6 do you have? If you go from 225/50/R18's to 225 40/R20's you will be fine (going from 50-40 is taking off some of the profile ,thickness, of the tire) its like a .8% difference
<the brake lesson>
the brake pads are a high friction material that squeezes on the brake disk
(i would get some high performance ones like hawks just to prevent your disks from getting to hot and warping)
the disk is the big circle piece of metal that is connected to the wheel hub this slows the car when friction from the pads slows the disk down(you only need new ones if ur going to race your car)
the caliper is what the pads go into. calipers squeeze the pads against the disk when you step on the peddle(you only need new ones if ur going to race your car)
you could also get high performance brake fluid but its no necessary with 225/40/R20's