Yellow Speed Racing Rear 4 Piston Ultra Big Brake Kit - Porsche 911 Twin Turbo 2006-2013 (997) fits_2002-2004`Infiniti`M35 Vacuum-Actuated Valves with controller for

Vacuum-Actuated Valves with controller for seamless sound control

Valves Open: Unleashes a deep

increasing performance while creating an aggressive yet refined tone

Vehicle Compatibility: 08-10 BMW 1 Series (E82 / E88)

and a quiet experience when the sound must be kept to a minimum

Yellow Speed Racing Rear 4 Piston Ultra Big Brake Kit - Porsche 911 Twin Turbo 2006-2013 (997) fits_2002-2004`Infiniti`M35 Vacuum-Actuated Valves with controller forYellow Speed Racings Ultra Series Big Brake Kit is designed for road and track use. This big brake kit features optimum braking performance, attractive looks, easy installation and a cost effective price. Factory brakes are designed primarily for daily driving on most applications. If you have added additional horsepower to your vehicle, or frequently compete in motorsports such as circuit racing, drifting, time attack or rally racing, then a big