Will sure do.


This car is definitely not needing it now, turbo motor is being built at the moment, but I needed new brakes on the thing, so I will upgrade fronts to 280mm. Now I always see just the fronts being done, and never the rears. I don't like that sight. Both the front and rear brakes needed new discs and calipers, so, while i'm at it anway, i will upgrade it all. Basically make it look good / balanced :) And yes, i probably won't need it, but it's also a fun exercise :)

On my Cq I have A4 288mm up front and 256mm rear and never had rear lock up issues.
I have the Audi Driver/VWAUDI car issues that I wrote for the rears.
The 256mm discs are solid discs from the front of a Mk3 Golf TDi and have the correct offset and just need the holes changing to suit. Fortunately we have a good workshop at work that allows me to do the necessary alterations. On the mounting side I filled the original holes and re-drilled and tapped the mounts 5.5mm further out and used the original calipers. No issues in the 19 years since:tup:

Out of interest, what is the basis for going to 280mm fronts?

What wheel size are you going with?
How much machining work are you willing to undertake or have done on the discs? If it's not important, and having something off the shelf to fit straight away is a low priority, then the only real limitation may be the height of the disc. And even that can be overcome.
What's the thickness of the front disc?

Other than the Q7, unless I'm mistaken, Audi have a 68mm front bore. I'm toying with the idea of Mercedes disks which are 67mm, but in my case I'd rather not be doing any machining work on the service items. I want to be able to buy disks and pads, and fit them. Machining work being only necessary on the hardware to get a brake conversion done in the first place.

In your case, normal PCD is 108mm. But if you're willing to drill the disks as needed, then this is a small issue.

One other option is to speak to Alex at Ultraperformance.
No idea of cost for your application, but he will make discs for you to your specification.

https://www.ultraperformance.co.uk/audi-s2rs2?page=1

I have no connection to them other than the fact I am using their dual brake booster conversion kit, one of the best mods I have made to my car.

280mm would be best considering i wanted to use the largest possible disc under a 15" wheel. I am running ronal R8 15" ET42 at the moment. This does have a problem with fitment, and would require running 1.8mm spacers , which i don't want. I do have now also sourced a set of 280x22 mm AP racing discs, and with custom bells for the discs and custom adapters for the calipers I should be able to get away with a 0.8mm spacer between the discs & wheels.

I have no problem doing some work, as i just like to have a very nice solution :)

*edit* Ow, and one other thing that let me to 280mm discs is, i wanted to run nice shiny red porsche calipers, and i didn't want to upgrade the B2 front struts to the (different mounting for calipers) B3 front struts.

Got the A4 288mm to fit behind the 15" wheel using the A4 carriers and calipers and yes converted to the early Series 3 struts that are identical apart from the carrier mount locations. With new pads had to take 0.5mm off the back of the spokes to stop catching but minor issue and avoids spacers. :tup:
https://i.ibb.co/P6Z8sN0/received-276513913899249.jpg

That does look very nice! I might switch to that too if this endeavor of mine becomes too costly or difficult. I did read you have a pdf on your installation about it, would you mind sending me that?

Have both the original 280mm and the latest 288mm install details, PM me your email address :tup: