The 13B-T has a single twin-scroll turbocharger along with the four-injector fuel injection with the 13B-DEI. You'll find not variable intake and 6PI methods. The 13B-T engine features the 4 port intake structure which similar to early 13B engines from 70's.The listing is for any cleanse and low mileage JDM Mazda RX-8 13B motor imported from Japan.