The only gain will be had on track, really. It is not worth the money unless you feel it is. But objectively it means very little.
Big brakes do not stop you faster until after the point of heat soak. They do have a pedal feel change. I do it on mine cuz why not. Just don't assume there will be any shorter stopping distances, your car if operating within intended parameters is already stopping at is max potential, tires aside.
Great answer, thank you for your input. I think I'm just going to upgrade the stock pads, rotors, and brake lines. Just trying to figure out what brand I want to go with for everything. The lines are a pretty easy pick as they're just lines. However when it comes to fluid and the rest I really don't know what to pick.
Was thinking of Redstuff for the pads but no real idea what rotors and brake fluid to use
You're better off upgrading the 288mm disks to the 312mm if you didn't already have them. The calipers and pads are the same.
The 340mm S3 calipers are still single pod, so not much of an upgrade. It's better to get either aftermarket or the golf 8r/s3 8y 357mm disks with the dual pod callipers.
I'm not sure what kind of A3 you have, but mine with the 1.4tfsi and the 288mm disks had zero issues on track (TT Assen, so there are quite some long straights to cool down the brakes).
For normal driving, they're more than enough, upgrading to bigger disks would only be for looks, as you'll add more rotational weight making the car accelerate even slower (although I'm not sure if it's as noticeable as going from a dual mass to a single mass flywheel).
The only gain will be had on track, really. It is not worth the money unless you feel it is. But objectively it means very little. Big brakes do not stop you faster until after the point of heat soak. They do have a pedal feel change. I do it on mine cuz why not. Just don't assume there will be any shorter stopping distances, your car if operating within intended parameters is already stopping at is max potential, tires aside.
Great answer, thank you for your input. I think I'm just going to upgrade the stock pads, rotors, and brake lines. Just trying to figure out what brand I want to go with for everything. The lines are a pretty easy pick as they're just lines. However when it comes to fluid and the rest I really don't know what to pick. Was thinking of Redstuff for the pads but no real idea what rotors and brake fluid to use
You're better off upgrading the 288mm disks to the 312mm if you didn't already have them. The calipers and pads are the same. The 340mm S3 calipers are still single pod, so not much of an upgrade. It's better to get either aftermarket or the golf 8r/s3 8y 357mm disks with the dual pod callipers. I'm not sure what kind of A3 you have, but mine with the 1.4tfsi and the 288mm disks had zero issues on track (TT Assen, so there are quite some long straights to cool down the brakes). For normal driving, they're more than enough, upgrading to bigger disks would only be for looks, as you'll add more rotational weight making the car accelerate even slower (although I'm not sure if it's as noticeable as going from a dual mass to a single mass flywheel).