What do I need on my S4 to fit the GiroDisc 300mm Rear Rotors for B5?

The GiroDisc 300mm Rear Rotors for B5, B6 and B7 S4 cars require the Stasis or 034Motorsport rear caliper bracket, which relocates the caliper for a 300mm disc. Without that bracket the rotors will not suit the car, so check the rear brake setup before ordering.

Why did GiroDisc make a replacement for the Stasis rear rotor?

Stasis, which supplied the original 300mm rear upgrade for the S4, is no longer in business, so owners struggled to find replacement discs. GiroDisc builds a complete replacement of the hat and rotor so cars running that bracket can keep being serviced.

Do these S4 rotors come with the caliper bracket?

No. The listing covers the two rotor assemblies only. The Stasis or 034Motorsport rear caliper bracket must already be on the car, or be sourced separately, because it is what positions the caliper over the larger 300mm disc on the S4.

How many drive pins hold the S4 rear ring?

Ten high-strength alloy steel drive pins, manufactured by GiroDisc to its own specification and cadmium plated for long corrosion resistance. Class 12.9 cap screws with hardened washers hold them, and anti-noise spring washers on the rotor side keep the ring quiet when cold while still letting it grow with heat.

Which rings fit when the S4 rear discs wear out?

GiroDisc offers D2-143, an Audi 300mm rear replacement ring sold as a pair with hardware. Once the GiroDisc hats are on the car, only the cast iron rings are replaced, keeping running costs down compared with buying complete rotors every time.

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Description

GiroDisc 300mm Rear Rotors for B5, B6 and B7 Audi S4

GiroDisc’s 300mm Rear Rotors for B5, B6 and B7 Audi S4 cars are lightweight two-piece discs made for the larger rear brake setup that the Stasis or 034Motorsport rear caliper bracket allows. With Stasis no longer trading, owners running that bracket had no easy source of replacement discs; GiroDisc now supplies the complete hat and rotor. The ring is GiroDisc’s own cast iron, poured in the USA, on a US-sourced 6061-T6 aluminum hat. For an S4 already converted to the 300mm rear, this keeps the car serviceable for years.

Fitment and Installation

These rotors require the Stasis or 034Motorsport rear caliper bracket that moves the caliper out to suit a 300mm disc; they are not for a car on the standard rear brake. With the bracket in place, the complete GiroDisc hat and rotor replaces the old Stasis part, and from then on only the iron ring is renewed.

Features

300mm diameter for the Stasis or 034Motorsport bracket
Complete hat and rotor assembly, replacing the discontinued Stasis part
Ten cadmium-plated high-strength alloy steel drive pins
Class 12.9 cap screws with hardened washers
Anti-noise spring washers for quiet float
Curved vane cast iron ring

What’s Included

Rear rotor assemblies (L/R)

Applications

Audi S4: B5
Audi S4: B6
Audi S4: B7

Notes

The GiroDisc 300mm Rear Rotors for B5, B6 and B7 S4 need the Stasis or 034Motorsport rear caliper bracket; cars on the standard rear brake are not covered
Worn rings are renewed with the GiroDisc Audi 300mm rear replacement rings
For the front of a B5 S4 with an Alcon or StopTech kit, see the GiroDisc B5 S4 front rotors for Alcon and StopTech kits
Stock photography may not depict the actual product

Frequently Asked Questions

What do I need on my S4 to fit the GiroDisc 300mm Rear Rotors for B5? The GiroDisc 300mm Rear Rotors for B5, B6 and B7 S4 cars require the Stasis or 034Motorsport rear caliper bracket, which relocates the caliper for a 300mm disc. Without that bracket the rotors will not suit the car, so check the rear brake setup before ordering.
Why did GiroDisc make a replacement for the Stasis rear rotor? Stasis, which supplied the original 300mm rear upgrade for the S4, is no longer in business, so owners struggled to find replacement discs. GiroDisc builds a complete replacement of the hat and rotor so cars running that bracket can keep being serviced.
Do these S4 rotors come with the caliper bracket? No. The listing covers the two rotor assemblies only. The Stasis or 034Motorsport rear caliper bracket must already be on the car, or be sourced separately, because it is what positions the caliper over the larger 300mm disc on the S4.
How many drive pins hold the S4 rear ring? Ten high-strength alloy steel drive pins, manufactured by GiroDisc to its own specification and cadmium plated for long corrosion resistance. Class 12.9 cap screws with hardened washers hold them, and anti-noise spring washers on the rotor side keep the ring quiet when cold while still letting it grow with heat.
Which rings fit when the S4 rear discs wear out? GiroDisc offers D2-143, an Audi 300mm rear replacement ring sold as a pair with hardware. Once the GiroDisc hats are on the car, only the cast iron rings are replaced, keeping running costs down compared with buying complete rotors every time.

About GiroDisc

GiroDisc designs, manufactures, and sells 2-piece, fully floating brake rotors for a wide range of performance vehicles. Every major component, including the hats, rotor rings, and drive pins, is manufactured in-house at their facility in Bellingham, Washington, from domestically sourced materials. GiroDisc rotors use a proprietary high-carbon iron ring formulated for superior metallurgy and thermal performance, paired with reusable machined-aluminum hats that reduce the long-term cost of maintaining a high-performance brake system. The 2-piece floating design sheds unsprung and rotating mass while remaining street-friendly, delivering race-proven braking for track and street use alike.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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GiroDisc 300mm Rear Rotors for B5, B6 and B7 Audi S4 [A2-143]

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GiroDisc 300mm Rear Rotors for B5, B6 and B7 Audi S4

Fitment and Installation

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About GiroDisc

Reviews