Wesfil Air Filter WA921 Ultra-Ceramic since copper is damaging to

since copper is damaging to our waterways

life and flow for optimal quality engine filtration and are essential for maintaining peak performance

Designed for drivers who want more from their brakes

The sensor is crucial in the control of temperature-based functions performed by the ECU (eg spark and fuel timing

They should be changed whenever the pads are replaced or when the vehicle's warning light indicates

Wesfil Air Filter WA921 Ultra-Ceramic since copper is damaging toThe extensive range of Wesfil air filters are a direct result of a wealth of technical and manufacturing expertise. Air filters play a huge role in maximizing engine efficiency and fuel economy. Continual research and development has led to a range of features designed to optimize vehicle performance.