Which cars do the GiroDisc Front Rotors for B5 fit?

The GiroDisc Front Rotors for B5 fit the B5 Audi S4, plus the C5 A6 and allroad with the 2.7L twin-turbo V6, when fitted with a Stasis/Alcon or StopTech 355x32mm big brake kit. They do not fit 4.2L V8 models or the RS6.

Why buy GiroDisc rotors for a Stasis big brake kit?

Stasis is no longer in business, which made replacement rotors for its Alcon-based kits hard to source. GiroDisc builds a complete replacement of the hat and ring for these 355x32mm kits, so owners can keep the calipers they already have in service.

Will these rotors fit a B5 S4 on the factory front brakes?

No. They are made specifically for cars running the Stasis/Alcon or StopTech 355x32mm big brake kits. A B5 S4 still on its factory front calipers needs a different rotor, so check which brake kit is on the car before ordering.

Do these rotors replace the hat as well as the ring?

Yes. GiroDisc supplies a complete assembly with a new 6061-T6 aluminum hat and a cast iron ring joined by ten cadmium-plated drive pins. Nothing from the old rotors is reused, which helps when the original kit hats are worn or unavailable.

Are the cap screws on these Audi rotors supposed to look loose?

Yes. The floating mount allows a small amount of movement, so the cap screws can look loose by design. GiroDisc states they are never tightened beyond 60 in-lb, or 7 Nm, and spring washers keep the rotor quiet when cold.

Description

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Description

GiroDisc Front Rotors for B5 Audi S4 with Alcon and StopTech Big Brake Kits

GiroDisc’s Front Rotors for B5 Audi S4 cars running the Stasis/Alcon or StopTech 355x32mm big brake kits replace the complete two-piece rotor, hat and ring together. With Stasis no longer trading, they give owners of those kits a current source of replacement rotors. GiroDisc floats a proprietary cast iron ring, poured in the USA and machined start to finish in-house, on a US-sourced 6061-T6 aluminum hat through 10 cadmium-plated drive pins. They suit the B5 S4 owner, or the 2.7T C5 A6 and allroad owner, who wants to keep an existing big brake kit in service.

Fitment and Installation

These rotors fit only the B5 S4, and the C5 A6 and allroad with the 2.7L twin-turbo V6, when equipped with the Stasis/Alcon or StopTech 355x32mm kit. They do not fit C5 A6 or allroad models with the 4.2L V8, or the RS6. The existing kit calipers are reused, and the cap screws on the drive pins are never tightened beyond 60 in-lb, or 7 Nm.

Features

Complete hat and ring replacement for Stasis/Alcon and StopTech 355x32mm kits
Current source of rotors for kits originally supplied by Stasis
10 cadmium-plated alloy steel drive pins made by GiroDisc
US-sourced 6061-T6 aircraft-specification aluminum hat
Proprietary cast iron ring with curved cooling vanes
Anti-noise spring washers that keep the floating ring quiet

What’s Included

Front rotor assemblies (L/R)

Applications

Audi A6 with Stasis/Alcon or StopTech 355x32mm kit: C5 | 2.7L twin-turbo V6
Audi allroad with Stasis/Alcon or StopTech 355x32mm kit: C5 | 2.7L twin-turbo V6
Audi S4 with Stasis/Alcon or StopTech 355x32mm kit: B5 | 2.7L twin-turbo V6

Notes

The GiroDisc Front Rotors for B5 fit the B5 S4 and the 2.7T C5 A6 and allroad with a Stasis/Alcon or StopTech 355x32mm kit only
They do not fit C5 A6 or allroad models with the 4.2L V8, or the RS6
Cars on the factory front brakes are not covered by this part
For the rear of a B5 S4 with the Stasis or 034 Motorsport rear bracket, GiroDisc offers the GiroDisc Audi S4 300mm rear rotors
Stock photography may not depict the actual product

Frequently Asked Questions

Which cars do the GiroDisc Front Rotors for B5 fit? The GiroDisc Front Rotors for B5 fit the B5 Audi S4, plus the C5 A6 and allroad with the 2.7L twin-turbo V6, when fitted with a Stasis/Alcon or StopTech 355x32mm big brake kit. They do not fit 4.2L V8 models or the RS6.
Why buy GiroDisc rotors for a Stasis big brake kit? Stasis is no longer in business, which made replacement rotors for its Alcon-based kits hard to source. GiroDisc builds a complete replacement of the hat and ring for these 355x32mm kits, so owners can keep the calipers they already have in service.
Will these rotors fit a B5 S4 on the factory front brakes? No. They are made specifically for cars running the Stasis/Alcon or StopTech 355x32mm big brake kits. A B5 S4 still on its factory front calipers needs a different rotor, so check which brake kit is on the car before ordering.
Do these rotors replace the hat as well as the ring? Yes. GiroDisc supplies a complete assembly with a new 6061-T6 aluminum hat and a cast iron ring joined by ten cadmium-plated drive pins. Nothing from the old rotors is reused, which helps when the original kit hats are worn or unavailable.
Are the cap screws on these Audi rotors supposed to look loose? Yes. The floating mount allows a small amount of movement, so the cap screws can look loose by design. GiroDisc states they are never tightened beyond 60 in-lb, or 7 Nm, and spring washers keep the rotor quiet when cold.

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 Front Rotors for B5 Audi S4 with Alcon and StopTech Big Brake Kits [A1-053]

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GiroDisc Front Rotors for B5 Audi S4 with Alcon and StopTech Big Brake Kits

Fitment and Installation

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About GiroDisc

Reviews