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Girodisc 4 wheel Big Brake Kit Ferrari 308 GTB 76-85

$4,499.00

Girodisc

Model #BK-021

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For those individuals looking to get more from their Ferrari 308, Girodisc announces its lightweight Ferrari 308 brake system. The Girodisc brake system is a direct replacement for the OE front rotor and caliper, and the rear rotor. The system is a bolt on, and provides significant weight and brake fade-resistance performance benefits. The front caliper is a forged aluminum four piston Wilwood racing caliper fitted with dirt seals for road use. The front rotor is a two-piece aluminum hat and iron rotor in 310 x 25 mm size. The rear rotor is a direct replacement size for the OE rotor, and utilizes the OE caliper in order to retain the parking brake assembly. The rear rotor is also a floating two piece unit. Kit specific braided stainless steel over Teflon brake lines are included as well as the proper pads to achieve the correct balance in the system.

The Girodisc system was designed for braking balance to match the OE system, only raising the level of braking torque, thermal capacity and cooling rate equally at each corner.

The Girodisc system will deliver a firm, better modulating pedal and the ability to get through track days without fading out or loosing pedal. The caliper piston sizing was chosen specifically to closely match the OE master cylinder and hydraulics as well as the force balance between front and rear axles.

The best part? The system fits inside the 16 Ferrari 308 wheel - No need to purchase larger wheels.

Additional product benefits of the Girodisc lightweight system include:

Weight Savings: The Girodisc complete front brake system with calipers weighs in at 15.8 lb less than the OE system. The Girodisc front discs are 3.3 lb lighter despite being 36 mm larger. The Wilwood forged aluminum caliper is 4.6 lb lighter than the iron OE caliper. The rear discs are more than 3 lbs lighter than the OE unit, and offer a 36.4% improvement in surface area-to-weight for the rotor over OE. The light weight discs decrease the rotational inertia of the braking system and reduce unsprung mass.

Braking Performance: The front caliper is flow-forged aluminum and was chosen for its light weight and correct piston sizing. It is a proven racing caliper and includes road use dirt seals for the pistons. The rotor is a two-piece design developed in racing to produce a lightweight rotor that can compensate for the different expansion rates between the hat and rotor and eliminate the possibility of rotor warping. The rotor and hat have a floating mount system, which utilizes 8 or 10 high strength alloy steel drive pins, which allows for axial and radial float. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise springs which allow the rotor to grow but eliminate rattle. This float also allows the rotor to self center between the pads. Thirty-two directionally curved vanes in the rotor act as a centrifugal air pump and actively move cooling air through the rotor as it rotates helping to shed heat quickly and reduce brake pad fading. The OE rotor uses restrictive vanes that do not pump air. The OE rotor will run at higher temperatures and develop pad fade sooner. The discs are also slotted, allowing a maximized contact at the interface between pad and disc as the edges of the slots continuously clean and refresh the pad surface.

High Quality Materials: The Girodisc lightweight discs use only the highest quality materials and components. The rotors are high carbon content iron for long wear and stable thermal performance, with zinc plating for corrosion resistance. The top hat section is aircraft 6061 T-6 billet aluminum with a gun-metal color anodized finish. The disc hardware consists of 10 cadmium plated alloy steel drive bushings which take the load from braking actions while maintaining the float between the hat and disc. Grade 12 cap screws with spring washers allow for float under braking while maintaining a rattle-free assembly while cold.

Matching Pad Materials: Girodisc uses a BP-10 front and a Ferodo DS2500 rear pad to keep the braking balance of the car.

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Vehicle Engine Notes
1986-1989
Ferrari 328

Who is Girodisc?

Girodisc is an aftermarket company that was founded in 2003 in Costa Mesa, California. It specializes in high quality brake components and initially catered to one of the best cars in the world, Ferrari. They later expanded their product offering by offering their products to various vehicle platforms. Today, they have become one of the fastest growing companies in the industry.

Continuous Improvement

As the company continued to grow, they relocated to a bigger facility in Bellingham, WA in a 17,000 square foot facility. It is equipped with the latest manufacturing tool available along with a dedicated rotor casting tool and a brake dynamometer. This helps them ensure that each product that comes out of their facility meets their high standard.

The Best of The Best

Girodisc offers some of the best brake components in the market and is known for its two-piece brake rotors. These are bolt on parts that fit directly on the vehicle. They only use the best material available which helps them create the best products.

Performing As Good As Good As It Looks

Their products are designed to have both form and function. Their rotors are made to improve brake ventilation and its cooling capability. It is also lighter which helps reduce unsprung weight. It comes in a variety of color finishes and slot patterns depending on your preferred style.

Purchase Girodisc Products at Vivid Racing

If you are in search of quality brake components and upgrades for your vehicle, then Girodisc is the brand for you. They have brakes designed for both street and high performance applications. To know more about Girodisc, visit Vivid Racing and check out their list of products that would fit your specific needs.



Purchaser acknowledges the Product is for off-road racing use only. The nature of off road racing involves significant risk, and the conditions under which the Product is used and types of use of the Product are many depending on factors such as installation and use. Due to the inherent risk of the activity in which the Product is used, the Purchaser understands and agrees the Seller provides a limited warranty for the Product, specifically, the warranty is limited to the following specification: less than .0015” runout and less than .0003”disc thickness variation.

If Purchaser provides Seller with written notice of any condition inconsistent with the specification set forth above on or before six (6) months from the date of delivery and complies with the return requirements set forth in Section 6, then Seller will, at its election either:
  • Provide a replacement Product, or
  • Refund the purchase price.
This limited warranty does not cover, and Seller will not pay for, or provide, labor or materials that which may be necessary to remove a Product or install a replacement Product. This warranty is limited to the exchange of the Product or return of the purchase price.

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