- Rear BBK (Big Brake Kit), JHM 330mm for B6-B7 S4
Rear BBK (Big Brake Kit), JHM 330mm for B6-B7 S4
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FINALLY a low cost 330mm Rear Big Brake Kit (BBK) for your B6-B7 S4. This is the BEST Rear BBK we make to compliment our massive 350mm 6-piston Cayenne Caliper BBK we offer for the front. This kit cannot be bought anywhere else since we make the custom, lightweight rotor ring and hat in house. These parts are not available from any other source. Our kit includes a JHM exclusive park brake spring relocation kit to allow the largest rotor possible on a stock wheel. The factory park brake spring limits the rear rotor diameter (it protrudes outboard and would hit a stock wheel on a rotor of this size). Click to enlarge picture
Click to enlarge picture
SPECIFICATIONS: Stock vs. JHM
- Rotor OD: Stock B6-B7 S4 = 300mm (11.8 inches) JHM = 330mm (13.0 inches) - More than 1 inch LARGER than stock better braking performance.
- Rotor Weight: Stock = 13.0 lbs (each), JHM = 11.5 lbs (each) - A total of 3 lbs LIGHTER with IMPROVED braking performance.
- Rotor Cooling Air-gap: Stock = 8.5mm (.334 inches), JHM = 13mm (.511 inches) - LARGER for better cooling
- Rotor Cooling Center Fin Design: Stock = Straight Fin, JHM = Airfoil - MORE EFFICIENT for better cooling
Click to enlarge picture
- Rotor Thickness: Stock = 22mm (.866 inches), JHM = 22mm (.866 inches) - SAME
- Bolt pattern: - SAME (fits like an OEM rotor would) INCLUDES:
2 - JHM 2-piece Lightweight 330mm Rear Rotors.
2 - Caliper adapter brackets made from Stainless Steel
4 - Caliper adapter bracket mount bolts
2 - Park brake springs
2 - Park brake spring brackets
2 - Longer caliper to caliper hanger bolts for Park brake spring brackets
-Works with stock sized, replacement B6-B7 S4 rear brake pads. Such as OEM, Hawk, PBR, Mintex, Etc. We sell pads as well, if you do not see the ones you want contact us for details.
Rotor Ring Specifications:
We worked closely with a racing 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 B6-B7 S4. The rotor rings feature 12 attachment points for durability and strength. Center Hat Specifications:
We CNC machine the Aluminum center hats in house for 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. Click to enlarge picture
NOTE: With the installs we have done we have found that our slot design is whisper quiet. Note - This brake upgrade fits under the Stock B6-S4 "Avus" style, 18" inch wheels. It also fits under both stock B7 S4 18" wheel designs. Even more room under most aftermarket 18" wheels and larger. INSTALLATION NOTES AND PICTURES HERE
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|Audi||S4||B6 (2003-2005)||4.2l V8 40v|
|Audi||S4||B7 (2005.5-2009)||4.2l V8 40v|
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.
Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.
Learn More: www.p65warnings.ca.gov