I have rebuilt, shaved, and ready-to-mount 2.5 single- and dual-overhead cam cylinder heads for Subaru Foresters, Imprezas, and Legacies in the 1998 to 2005 year range (older style) and the variable valve timing model (newer style) from the 2006 to 2010 range (these are the models that use timing belts--not chains). I do NOT have any turbo versions, and I do not provide heads for 2011 and on timing-chain versions. The older style are $150 each, the newer style $350 each. No core is required. A very competent machine shop has done the builds on these heads and we've never had a problem with them. Warrantied for 30 days if you don't overheat them, run engine out of oil, or bend the valves. Note that Subaru requires the valves to be adjusted AFTER the head is torqued on. Call Dave at 801-643-5686 if you have questions.