Excellent Silicone intake sleeve AKA intake runner boot for 2.1L WBX Vanagons. The soft rubber ones are no longer available, and the ones typically offered are prone to splitting because they are too small. These superb silicone boots are just tight enough to require a dab of lubricant to install (it's a good thing), and not loose enough to require clamps (you can use them anyway if you like). 4 required per vehicle; sold individually. Original VW part # N90305201