Originally Posted by
V1nny
before going that direction, consider Q5 3.0 calipers and 345 mm S4 rotors.
I just went this route as I heard it may have a little more
wheel clearance than typical 17z/18z Brembos. I printed both templates off from ECS and can attest this to be true. The B6/B7 calipers provide the most wheel clearance, even more than the stock B5 S4 HP2 calipers.
The Porsche Macan/Audi Q5 3.0T 4 Piston Brembos (that I ended up going with) are roughly 2mm wider (toward the wheel spokes) than the stock HP2 calipers. So plan for that. These calipers can be ran with B6/B7 345mm rotors. The offset on those rotors is perfect for the B5 to run these calipers. Bolts right up. There may be 2 piece rotors out there for the B6/B7 S4 345 rotors, not positive though. I just went with Zimmermann blanks with z-coat.
The Q5 3.0T/Macan Brembo calipers are lighter than the stock HP2 calipers. The 345mm rotors are heavier than the stock 321mm rotors. Weight wise, its basically the same as the stock setup but with a much larger rotor and better calipers. Which means much better braking over stock. IF there are 2 piece rotors out there, this setup will be lighter than stock while again providing superior braking.
Another advantage of this setup is that you can run
certain 17" wheels over it (depending on wheel spoke design), like 17z, while having a 15mm larger rotor (345mm), over the 330mm 17z setup.
One thing to note - when sourcing the calipers, the Porsche Macan calipers were much cheaper than the Audi Q5 3.0T calipers for some reason. They're the EXACT same Brembo 4pot caliper. The Porsche ones come factory coated with a gunmetal coating and white Porsche lettering. The Q5 3.0T are bare metal and no lettering. I went with the Porsche one's as they were significantly cheaper (score!).
I'll shutup after this I promise. This has to do with the REARS so If you don't care about the rears just stop reading now. I also upgraded the rear's on my car to B6/B7 S4 300mm rotors, running adapters that allow you to utilize the stock B5 caliper and pads to this larger B6/B7 rotor. 034 makes these adapters and have instructions on the process. Apikol also makes adapters. The company I used is out of the UK and they are a little cheaper for their adapters, exact same thing. You can also use B6/B7 S4 rear calipers with these adapters as well, but the caliper is so similar to the stock B5 one I personally didn't see the point.
https://creationsmotorsport.com/audi...es-br0037.html
I have an extra set of brand new Stop Tech stainless steel lines for this setup, front and rear, as I accidentally ordered two sets when I installed mine. If anyone goes this route and wants stainless lines, drop me a line. I may post them for sale in the classifieds soon.
Front Brembos required Mk2 (maybe Mk3 can't remember right now, I'll look when I get home and edit thread) Jetta lines to properly fit the B5, as the Q5 lines are too long. Rear (stock B5) used B7 RS4 lines, works perfect with stock B5 calipers.
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