These are for a built motor, with a built/ported head, and a good engine management system. Check Pictures for cam placement. Long nose = Left Side, Short Nose = Right Side Due to the lobe size, head castings will need to be filled down slightly for clearance.
040 / Peak Lift 10.4mm / Centerline 115 Proper break in and running high zinc oil is a must on flat tappet engines. Must be installed by an experienced technician Requires upgraded valve springs. The item "GSC S2 CAMSHAFTS CAMS FOR 04-07 SUBARU STI EJ257 AND 06-07 WRX 2.5L TURBO EJ255" is in sale since Friday, April 1, 2016. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Camshafts, Lifters & Parts". The seller is "promotiveconceptsllc" and is located in Multiple Warehouses.This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Barbados, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guadeloupe, Iceland, Jordan, Cayman islands, Sri lanka, Luxembourg, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.