Ford Focus MK3 RS ST AIRTEC Motorsport Header Tank

Direct-fit aluminium header tank for Ford Focus MK3 RS and ST. Replaces the brittle OEM plastic unit with lightweight, high-strength alloy and a durable black powder coat.

Features a clear sight glass for instant coolant level checks and includes an uprated high-pressure cap to improve system integrity - critical for fast road or track day use.

• Fits using all original mounting points, hoses and connectors
• No drilling, cutting or specialist tools required
• Simple DIY swap in under an hour