Brembo Brake caliper pistons

[Merrill]

Can anyone tell me the number of pistons on the Model S Brembo brake calipers, I heard it was 4 front and 6 rear.

 

[Dreamin]

Looking at the physical calipers, they look like 4 front and 4 rear.

Correction: It's 4 front and 5 rear counting the parking brake caliper.

 

[kirkp]

According to this article, Tesla Motors Inc (TSLA): Tesla Suppliers - Modine And Brembo Offer Superior Model S Exposure - Seeking Alpha , it's 6-caliper front and 4-caliper rear.

 

[Musterion]

Manual says four piston fixed for both. Rotors are different diameters (355mm front, 365mm rear).