DeutschTuning proudly offers NonStopTuning Lightweight Crank & Power Steering Pulley 2 Piece Kit BMW 335i N54 06-12. NonStopTuning was established in 2005 and set out to drive performance trends for sport compact cars; to design and develop high performance products that large automobile manufacturers could, but would not produce. NST is committed to marketing products of exceptional quality, craftsmanship, and reliability. A dedication to monitoring consumer needs and feedback regarding quality of materials, visual appearance, and most importantly performance, is the driving force behind the success of NST. Products found at NST are not only offered at a great value, but are also designed to be very user-friendly and easy to install.Each kit is CNC machined from 6061-T6 aircraft quality aluminum, and tested for tight machining and balance tolerances. Approximately 70% - 75% lighter than stock. Dyno proven an average gain of 7-10 horsepower and torque. Better throttle response and fuel economy. Smoother operation and higher MPG