The upgrade kit is available for all RTA and RT-flex engines with multiple turbochargers.
RT-FLEX50, RT-FLEX50-B, RT-FLEX50-D, RT-FLEX58T, RT-FLEX58T-B, RT-FLEX58T-D, RT-FLEX58T-G, RT-FLEX60C, RT-FLEX60C-B, RT-FLEX68-B, RT-FLEX68-D, RT-FLEX82C, RT-FLEX82T, RT-FLEX84T-D, RT-FLEX96C, RT-FLEX96C-B, RT-FLEX96C-D, RTA38, RTA48, RTA48T, RTA48T-B, RTA48T-D, RTA52, RTA52U, RTA52U-B, RTA58, RTA58T, RTA58T-B, RTA58T-D, RTA62, RTA62U, RTA62U-B, RTA68, RTA68-B, RTA68-D, RTA72, RTA72U, RTA72U-B, RTA72UB, RTA76, RTA82C, RTA82T, RTA84, RTA84C, RTA84C-U, RTA84CU, RTA84M, RTA84T, RTA84T-B, RTA84T-D, RTA96C, RTA96C-B, RTA96C-D