Power Stop 05-09 Audi A4 Rear Evolution Drilled & Slotted Rotors - Pair Model S On the inside it contains

On the inside it contains cutting-edge technology

" Making good better: The stock A4 exhaust system has crimped tubing that obstructs exhaust flow

BMW F2X/F3X Front Endlinks (FE) for the BMW F2X and F3X chassis feature massive Teflon lined FK 1/2" bearings to provide the highest load capacity for use with stiffer aftermarket sway bars

Haltech iC-7 Display Dash Standard Mounting Bracket

the way it should have come from the factory

Power Stop 05-09 Audi A4 Rear Evolution Drilled & Slotted Rotors - Pair Model S On the inside it containsPower Stop drilled and slotted rotors provide a bolt on upgrade for improved brake cooling and performance. Precision cross drilled for maximum cooling and maximum performance during extreme conditions; rounded slots sweep away gasses, dust, and moisture to keep a clean friction contact patch on the rotor surface. Silver zinc dichromate plating resists rust and corrosion. With a direct OE fit, there are no special modifications needed.