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.

-Rotor Weight: Stock = JHM = 17lbs(each)
-Rotor Cooling Air-gap: JHM = 18.5mm(.728")
-Rotor Cooling Center Fin Design: Stock = Straight Fin, JHM = Airfoil - MORE EFFICIENT for better cooling
-Bolt pattern: - SAME (fits like an OEM rotor would)

Outer ring specs:
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 B6-B7 S4-A4 with a Cayenne caliper bolted on. 12 attachment points for durability and strength.

Center hat specs:
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.

INCLUDES: 2 x JHM 2-piece Lightweight Slotted Front Rotors and 2 x rotor hat to hub adapters that MUST be installed between the rotor hat and hub BEFORE putting the rotor on.

Note: Clears most OEM 18" wheels and most aftermarket 18" wheels.

Install instructions are at https://jhmotorsports.com/products/brakes-suspension/front-bbk-big-brake-kit-jhm-350mm-cayenne-brembo-6-piston-b5-b6-b7-c5-no-calipers.html