Porterfield Brake Pads for 2011 BMW X6 xDrive 35i Turbo System or do I need to

or do I need to buy two for both sides

Damping Levels 16-Level Height Adjustment Yes Spring Rate(Front) 6 kg/mm (336 lbs/inch) Spring Rate(Rear) 5 kg/mm (280 lbs/inch) Spring Length(Front) 200 mm Spring Length(Rear) 230 mm Front Top Mount Yes

Transform Your BMW 3 Series with Signature Black LED U-Bar Headlights - Premium Styling for E90/E91 (2005-2012)

Resistant to oil vapor

GTS-inspired design for a more aggressive front-end appearance

Porterfield Brake Pads for 2011 BMW X6 xDrive 35i Turbo System or do I need toPorterfield Brake Pads for 2011 BMW X6 xDrive 35i Porterfield R4 Porterfield R4 Carbon Kevlar based brake pads were fully designed for heavy duty extreme motorsports use. Its one of the the few true motorsports competition pads available on the market today. The carbon based semi metallic R4 brake material allows the brake pad to absorb huge amounts of heat and dissipate it quickly and evenly over time. The Carbon Kevlar material also allows the brake