Originally Posted by madnitro

What older sirio do you have??? The sirio that I have is a L. Collari, which has the Piston/Sleeve 3-Port AAC .12 (this is basically a EVO 3). All older sirios take the same part numbers. I don’t have any idea if the newer sirios (EVO 3 sti) take the same parts???? The website that has the AAC P/S is http://werksracing.com/product.do?sku=WRXLC12041214 don’t let the price scare you. It list as 149.99, but when you click on buy now (shopatron) it lists for 99.99 plus shipping and handling. Kyosho has the normal P/S for sale, but I dont know if has the AAC P/S. I hope that helps..