exSVT

I was just checking on S4 spec and found out that the spec sheet on AW Resource page list the brakes are same as the A4 ones - 325mm vented front and 288mm non-vented in rear.

Did Audi down sized and now using A4 brake set up on S4s or simply typo on 2007 S4 spec sheet?

Could anyone with 2004 S4 verify this? Just curious.

BTW, My B7 A4 brakes (4 calipers, 4 carriers and rotors if you want them) I took out of my car past weekend are up for grab at $400. It has 19500 mile on them.

Merkin

and i don't think S4 rear fits on B7 A4

exSVT

They are direct bolt on as I replaced mine with S4 ones on last weekend.

nanotech

I have a set on my car.

The rear brake thing is interesting. So you bolted up B6 S4 rear brakes to a B7 A4? Or you bolted up B7 S4 rear brakes to a B7 A4? The common consensus in the B6 forum is that we can run the B6 S4 rear brakes, but not the B7 A4 rear brakes.

nanotech

The caliper is the same as yours, FYI; the difference is only the carrier and rotor size. Same pads, same caliper, etc.

exSVT

Yes, I have installed 2004 S4 brakes (front and rear) on my B7 A4. Everything was direct bolt on. No modification required - even rear splash sheid on B7 A4 was oversized to fit larger S4 rotors.

Ed@mtl

Did you have to replace the A4 rear calipers for the rear S4 conversion?