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Front BBK (Big Brake Kit) JHM 350mm Cayenne (Brembo 6-piston) C5-A6-S6 4.2L w RED Calipers

SKU: JHM-BBK-1025x350x32-RED


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Audi S8 Brake Rotors (Rear) | 2-piece Lightweight

Due to popular demand, all of our 2-piece, lightweight rotors will now come with black anodized rotor hats featuring Type 3, hard anodizing, the highest quality and hardest anodizing available for aluminum. This will make the rotor hats more resistant to fade and wear and will hide brake dust better. Due to popular, demand all lightweight rotor rings will also feature zinc plating. This high quality coating will slow the effects of corrosion and keep your rotor rings looking good through the winters.

In stock and ready to ship as of 8-1-2012.


FINALLY a low cost front BBK (Big Brake kit) solution for your C5 Chassis A6 or S6 with the 4.2L that uses the popular Porsche Cayenne caliper (6-piston Brembo) while clearing OEM 18" wheels and most aftermarket 18" wheels as well.


**NOTE: Only fits the C5-A6s and S6s with the 4.2L V8 motor and widebody. This kit will not fit C5-A6s or allroads with the 2.7T or the 2005 C5-allroad with the 4.2L V8.**


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INCLUDES: 2 - JHM 2-piece Lightweight Slotted Front Rotors (350mm x 32mm), 2 - BRAND NEW RED OEM Porsche Cayenne (6-piston Brembo) Calipers (lines and bleeder screws swapped from end to end by JHM for proper performance on an Audi), 2 - Stainless DOT approved Brake Lines, 2 - OEM Cayenne Brake Pad sensors (they work by only splicing 2 wires), 1 - Liter Pentosin DOT 4 Synthetic Brake Fluid and all bolts and hardware to mount the calipers with JHM exclusive 16mm to 14mm stainless bushings to snuggly fit the caliper - DOWNLOAD INSTRUCTION ZIP FILE BELOW WITH PICTURES AND NOTES (not sent with kit).

DOES NOT INCLUDE PADS - We carry several options for this kit, we recommend the Hawk pads the most, search on our site for "330mm brake pads" for all our options from Hawk and the OEM pagid option




Stock 321mm vs. JHM 350mm 2-piece for the Porsche Cayenne Caliper:
-Rotor OD: Stock = 321mm (12.6 inches), JHM = 350mm (13.8 inches) - 1.2" larger
-Rotor Thickness: Stock = 30mm (1.18 inches), JHM = 32mm (1.26 inches) - thicker
-Rotor Weight: Stock = 21lbs (each), JHM = 17lbs (each) - 20% LIGHTER, 4lbs less each
-Rotor Cooling Air-gap: Stock = 11mm (.433 inches), JHM = 18.5mm (.728 inches) - LARGER for better cooling
-Rotor Cooling Center Fin Design: Stock = Straight Fin, JHM = Airfoil - MORE EFFICIENT for better cooling
-Bolt pattern: - SAME (fits like an OEM rotor would)


Why the Porsche Cayenne caliper? With its 6-piston design and MASSIVE brake pads it is a strong performer. Also, it bolts right up to your spindles with NO brackets. All you need is some bolts, nuts, brake lines, and JHM rotors and you have a 350mm BBK. Being that it is an OEM part they are readily available and can be found used for great prices.


Outer ring specifications:
We worked closely with a race brake manufacturer that supplies many NASCAR racers and a couple major brake kit companies. Due to their expertise we chose to have them build us the outer rings to our specs to fit the C5-A6s and S6s with the 4.2L with a Cayenne caliper bolted on. 12 attachment points for durability and strength.


Center hat specifications:
We CNC machine the Aluminum center hats in house based on their recommended materials and thicknesses for durability. 12 attachment points for durability and strength. We also engrave JHM in them in 3 locations equal from each other, it looks clean and doesn't jump out or look tacky.


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Audi B8 S4-S5 Brake Rotors (Rear) 2-piece Lightweight


NOTE: The C5 A6-S6 4.2l V8 spindles sometimes have excess material where the caliper mounts to the spindle at the upper mount point. This takes the caliper out of parallel to the rotor. Check for this by installing the caliper and rotor with no pads and checking that the outer pins are the same distance from the rotor (make sure you have the rotor flat and installed with 5 bolts). If the top pin is much closer or touching you need to shave down the upper mounting point until the caliper is parallel with the rotor. Also you will notice that the caliper is closer to both outer pins vs the outer pins, this is ok and as designed. This outward bias is there to give max clearance for the rotor from the spindle and for optimum performance. Unfortunately this is a mass produced cars and inconsistencies do happen from time to time in the manufacturing of a car. This is a quick fix and once the caliper is parallel the kit will install easily.


Note - This brake upgrade only fits under 18" wheels or larger. It fits stock 18" C5-A6 4.2L wheels with NO wheel spacer and most other OEM and aftermarket wheels as well.


Please note: JH Motorsports does not recommend using EBC brake pads with our 2-piece lightweight rotors. Customer have reported and we have found EBC pads leave excessive pad deposits that can cause brake pulsation. Many EBC pads have a break in coating that reacts with the zinc plating used on our rotors



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This product fits the following vehicles:
Make Model Chassis Engine
Audi S6 C5 (2002-2003) 4.2l V8 40v
Audi A6 C5 (1998-2004) 4.2l V8 40v
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You're reviewing: Front BBK (Big Brake Kit) JHM 350mm Cayenne (Brembo 6-piston) C5-A6-S6 4.2L w RED Calipers
Off-road Use

By Purchasing any Off-Road use ONLY products from JH Motorsports, Inc. I acknowledge and understand the following disclosure. (This notice is located at the bottom of the page description of affected products on our website.)

Vehicle Code § 27156:
(b) No person shall operate or leave standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device under Part 5 (commencing with Section 43000) of Division 26 of the Health and Safety Code or any other certified motor vehicle pollution control device required by any other state law or any rule or regulation adopted pursuant to that law, or required to be equipped with a motor vehicle pollution control device pursuant to the National Emission Standards Act (42 U.S.C. Secs. 7521 to 7550, inclusive) and the standards and regulations adopted pursuant to that federal act, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition. No person shall disconnect, modify, or alter any such required device.
(c) No person shall install, sell, offer for sale, or advertise any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system.

Health and Safety Code § 43000:
43001. The provisions of this part shall not apply to:
(a) Racing vehicles.

As the aforementioned code sections outline, it is against the law to operate or use a vehicle on public streets or highways with modified, altered, or disconnected motor vehicle pollution control devices. This may include but is not limited to, Evaporative Fuel Controls, Catalysts, DPF, PTOX, PCV Systems, Exhaust Gas Recirculation Systems, Oxygen Sensors, Thermostatic Air Cleaners, Air Intake Systems, Fuel Injectors, Regulators, Adjustable Cam Gears, ECU Programming, Mapping, or other Computer Modifications. Air Pumps, Air Injection, Timing, and any other Emission System Modification(s).

Purchaser acknowledges and certifies to JH Motorsports Inc., that Purchasers vehicle will only be used for racing applications or off road vehicle use only. Purchaser requests these modifications for the purpose of enhancing the vehicle for competitive Racing Applications and will not use this vehicle on public streets or highways. Purchaser agrees to indemnify JH Motorsports Inc., all employees, officers, owners, and subsidiaries for any civil or criminal liability arising out of use of Purchasers vehicle on public streets or highways as Purchaser has been duly notified of the laws and regulations regarding disconnecting, alteration, or modification of a vehicle’s pollution control devices. Purchaser understands and has been advised the driving of a vehicle on public streets or highways could result in criminal or civil penalties.

Prop 65

Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.

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