Just want to let you guys know that if any of you like to upgrade you stock brake into Cayenne Brembo 6 pots front and 4 pots rear calipers w/ brembo performance rotors, hit me up, I can help. This is by far not cheap by any standard but it's a fraction of the cost if you were to buy this complete from a vendor. If you are on a budget, better look into R32 system, which is basically a GTI brake w/ bigger piston and it will be very annoyed...I went thru that route and I know.
Front brake will mount w/o adapters, includes:
1. 6 pots Porsche Cayenne progressive calipers
2. 350mm brembo rotors. Optional light weight, two pieces rotors (17.2 lbs vs 25.7 lbs)
3. Stainless steel braided brake lines
Cost to put together a complete kit yourself. Less than $1000
Dual rear calipers brakes set-up fit w/ adapters. Parking brakes function by an extra parking caliper.
1. 4 pots Porsche Cayenne progressive calipers
2. Brembo parking/e-brake calipers.
3. 330mm brembo rotors. Optional 335mm light weight, two pieces rotors (12.5 lbs vs 19.55 lbs)
4. Stainless steel braided brake lines.
5. CAD/CAM designed, corrosive resistance T6160 aluminum brackets, CNC cut w/ high tolerance.
Cost to put this together yourself: $1200 depending on the cost and availability of
used brembo parking/e-brake calipers. New brembo e-brake/parking calipers starting at $990/pair. Basic (non-brembo) parking caliper $300/pair
Note: dual rear calipers set up are usually found on high end, high performance cars, track racing and rally cars. It does not use shoes/drum brake which has large unsprung weight on the rotors. If you're unfamiliar w/ dual caliper rear set up, check out Dodge Vipers, Jaguar S type R. Those system are less common due to the high cost of manufacturing, but it's the best system that money can buy.
Cayenne calipers are progressives, meaning they have two rows of calipers on each side going from smaller pistons to bigger. This will prevent the jerking on/off locking mode of a regular calipers. Cayenne calipers feel like a forgiving ride, but give you all the control when you need it.
This is what it looks like on my car.