Installing a Perrin crank pulley saves weight and improves throttle response.
Lightweight pulleys are a common upgrade for most performance cars and are also suitable for street cars. By reducing the engine rotating mass, you are saving weight and in addition, improving throttle response. A Perrin crank pulley can be easily installed on any BRZ, FRS, or Toyota 86 with positive improvements. The installation process requires only basic tools and knowledge of car repairs or modifications. Because the cost of the pulley is relatively inexpensive, this is a good bang for your buck kind of upgrade. Lightweight pulley’s are typically an upgrade that I do along with other engine bolt-on modifications.