This was the 1st EJ20 turbo to appear in Australia with AVCS and an operational intercooler h2o spray program. There have been no mechanical alterations in subsequent STi designs until the introduction with the two.5-litre engine during the MY06 STi. Each of them have aluminum cylinder heads with cross-stream cooling, https://kameronmljhg.pages10.com/5-easy-facts-about-subaru-ej20-turbo-motor-for-sale-described-64853923