Will the 8 piston calipers/370mm rotors from the RS3 bolt onto the S3?

[p3u]

Just wondering if this is a direct bolt on affair or if anything else required to fit.

Thanks.

[will13k7]

Nope, you’ll need B8 RS5 caliper brackets, some washers to align the calipers, and RSQ3 rotors.

[p3u]

Nope, you’ll need B8 RS5 caliper brackets, some washers to align the calipers, and RSQ3 rotors.

What is the reason for this? Are the mounting points on the knuckle different?

[will13k7]

the rs3 front end is wider than the s3s.

this is what the rs3 rotors look like on the s3, not even close:



caliper bracket:


... with the parts I mentioned:



brake feel is great for aggressive driving, a little touchy at low speeds, but you get used to it. probably needs the brake booster from the rs3 to make it feel better at low speeds, not sure if anyone tried it though.

[bb-tt]

i have a set of ttrs(2012) 370x32mm rotors in the garage, not sure if they are different offset/rotor height then the rs3,



Edit: just north of ballpark off 360 if you want to try and fit them.