does any one kno if this http://cgi.ebay.co.uk/HKS-RS-AIR-FILTER-INDUCTION-KIT-FOR-RX7_W0QQitemZ230102417493QQihZ013QQcategoryZ36680QQssPageNameZWDVWQQrdZ1QQcmdZViewItem#ebayphotohosting (http://cgi.ebay.co.uk/HKS-RS-AIR-FILTER-INDUCTION-KIT-FOR-RX7_W0QQitemZ230102417493QQihZ013QQcategoryZ36680QQssPageNameZWDVWQQrdZ1QQcmdZViewItem#ebayphotohosting)
is included in this
http://www.envyperformance.com/index.cfm?fuseaction=product.display&Product_ID=4891 (http://www.envyperformance.com/index.cfm?fuseaction=product.display&Product_ID=4891)
or if any of these pipes replace the stock airfilter pipes