Astra H Caravan (Z20LET, Z22YEH) Bilstein B12 Pro-Kit 46-182142 - Fast Road, Track Day, Daily Driver

The Bilstein B12 Pro-Kit 46-182142 is a matched monotube damper and Eibach spring set engineered for the Astra H Caravan with Z20LET or Z22YEH engines. Not a generic ‘sport kit’ - this is the real deal for fast road use, track day prep, or a tauter daily driver without sacrificing compliance.

• Direct fit for Astra H Caravan (2004-2010), including all Z20LET and Z22YEH variants - no spacers, no trimming, no guesswork
• Lowered stance: ~30mm front, ~35mm rear - subtle enough for UK roads, aggressive enough to matter
• Bilstein B12 monotube dampers: higher gas pressure, faster response, better fade resistance than twin-tube units - critical for track day or spirited back-road use
• Eibach Pro-Kit springs: linear rate, powder-coated, corrosion-resistant - tuned specifically to work with these dampers, not just bolted on
• Search terms this actually matches: Astra H Caravan Z20LET suspension, Z22YEH fast road kit, B12 Pro-Kit 46-182142, Astra H Caravan track day suspension, lowered Astra H daily driver