Wunderladen Racing | Billet Tensioner Pulley | Honda Civic Type R | 2.0T K20C1 | 2015+This is the Wunderladen Racing billet idler tensioner pulley for the K20C1 engines found in both 10th and 11th gen Civics. The factory pulley is a low quality pulley made from stamped steel. This means the stock pulley is not only heavy but also prone to rusting. The Wunderladen Racing billet aluminium pulley is a 30% weight savings over the stock pulley and provides a better aesthetic to the engine! TECH SPECS Bolt on replacement COMPATIBLE VEHICLES