The T-400 kit has shown some very promising results from early in the development. Our test car (Evo VII: TOKYO), has been sporting one of these kits for several weeks now as we undertake some road reliability testing and drivability checks. Update... Because of long term engine reliability concerns with Evo's VII, VIII and VIIIMR we have decided to pursue the 400+ power upgrades with only the Evo IX. Please contact us if you wish to modify your Evo IX to produce in excess of 400bhp. >Click here for more about the T-Series range.