TiALSport Springs are engineered for precise actuator control in demanding environments. Constructed from 17-7PH stainless steel, these springs deliver consistent pressure and maintain their integrity at temperatures up to 900°F (483°C), exceeding typical actuator requirements. Each spring is color-coded for easy identification and is sold individually. To ensure correct fitment, refer to your specific model’s diagram to match the color coding and diameter. Note: Q and QR springs should be selected based on negative (vacuum) manifold pressure at engine idle, not by positive (boost) manifold pressure rating.