How much lighter are the GiroDisc Front Rotors for 6th Gen Camaro ZL1?

GiroDisc weighed a factory ZL1 front rotor at 32.5 lb, and the GiroDisc Front Rotors for 6th Gen Camaro ZL1 weigh 28 lb fully assembled. That saves about 4.5 lb per corner of rotating, unsprung mass, while the 72 vane ring is designed to clear heat faster than the factory pillar vane disc.

Why is the factory ZL1 front rotor so heavy?

According to GiroDisc, the original rotor uses a pillar vane core that heat soaks easily and has no efficient way to move that heat out, so Chevrolet added mass to cope. GiroDisc instead uses directional curved vanes that pump air through the disc, which lets the ring be lighter.

What should ZL1 owners confirm before ordering these rotors?

The ring face is shorter than stock, which is how GiroDisc trims weight, and the rest of the front brake setup has to suit it. Our team will confirm the complete fitment requirements for your ZL1 before the order ships, so the car is ready to drive once the rotors go on.

Which part number renews the ZL1 front rings?

GiroDisc part D1-211 is the matching front ring set. The 390mm rings come as a pair with new hardware and bolt to the hats already on the car, so only the iron is replaced when it reaches the minimum thickness marked on the hat and ring edge.

Do directional vanes make the ZL1 rotors side specific?

Yes. The 72 curved vanes only pump air outward when they turn in the intended direction, so GiroDisc makes a left and a right rotor and labels each one. Installing them on the wrong sides reduces cooling, which defeats the purpose of the design.

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Description

GiroDisc Front Rotors for 6th Gen Chevrolet Camaro ZL1

GiroDisc’s Front Rotors for 6th Gen Chevrolet Camaro ZL1 answer a factory disc that GiroDisc weighed at 32.5 lb, heavy because its pillar-vane core relies on mass to soak up heat. GiroDisc’s assembly weighs 28 lb and uses 72 directional curved vanes instead, pumping air from the hub out through a ring of USA-poured iron on a 6061-T6 aluminum hat. It is aimed at the ZL1 owner whose track days end with hot, tired front brakes and who wants a disc that sheds heat instead of storing it.

Fitment and Installation

The rotors mount to the hub with the factory six-piston front calipers, and twelve cadmium-plated drive pins secured by class 12.9 cap screws carry the ring. GiroDisc uses a shorter ring face than the stock disc to keep weight down, so please confirm the complete fitment requirements with our team before ordering. Each rotor is labeled for its side.

Features

28 lb assembled, against 32.5 lb for the factory front rotor GiroDisc weighed
72 directional curved vanes in place of the factory pillar-vane core
Twelve high-strength alloy steel drive pins, cadmium plated
Anti-noise spring washers that silence the floating ring when cold
Ring cast from proprietary iron poured in the USA and machined in-house
Slotted face that keeps the friction surface clean

What’s Included

Front rotor assemblies (L/R)

Applications

Chevrolet Camaro ZL1: 6th Gen | 6.2L LT4 supercharged V8

Notes

The Front Rotors for 6th Gen Camaro ZL1 use a shorter ring face than stock, so confirm the full fitment requirements with us before ordering
Worn iron is renewed with the GiroDisc Camaro ZL1 front replacement rings, which bolt to these hats
The rear axle takes the GiroDisc Camaro SS and ZL1 rear rotors
Cap screws can look loose by design and are never tightened beyond 60 in-lb (7 Nm)
Stock photography may not depict the actual product

Frequently Asked Questions

How much lighter are the GiroDisc Front Rotors for 6th Gen Camaro ZL1? GiroDisc weighed a factory ZL1 front rotor at 32.5 lb, and the GiroDisc Front Rotors for 6th Gen Camaro ZL1 weigh 28 lb fully assembled. That saves about 4.5 lb per corner of rotating, unsprung mass, while the 72 vane ring is designed to clear heat faster than the factory pillar vane disc.
Why is the factory ZL1 front rotor so heavy? According to GiroDisc, the original rotor uses a pillar vane core that heat soaks easily and has no efficient way to move that heat out, so Chevrolet added mass to cope. GiroDisc instead uses directional curved vanes that pump air through the disc, which lets the ring be lighter.
What should ZL1 owners confirm before ordering these rotors? The ring face is shorter than stock, which is how GiroDisc trims weight, and the rest of the front brake setup has to suit it. Our team will confirm the complete fitment requirements for your ZL1 before the order ships, so the car is ready to drive once the rotors go on.
Which part number renews the ZL1 front rings? GiroDisc part D1-211 is the matching front ring set. The 390mm rings come as a pair with new hardware and bolt to the hats already on the car, so only the iron is replaced when it reaches the minimum thickness marked on the hat and ring edge.
Do directional vanes make the ZL1 rotors side specific? Yes. The 72 curved vanes only pump air outward when they turn in the intended direction, so GiroDisc makes a left and a right rotor and labels each one. Installing them on the wrong sides reduces cooling, which defeats the purpose of the design.

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 6th Gen Chevrolet Camaro ZL1 [A1-211]

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GiroDisc Front Rotors for 6th Gen Chevrolet Camaro ZL1

Fitment and Installation

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About GiroDisc

Reviews