the turbo link updates like 1 frame every 1.25 seconds the power logger udpates 25 frames a second. the difference is night and day and with the power logger you can log more stuff then tlink since you have more inputs for wideband egt or and .5v source. the power logger is a awsome tunning tool. we buick people have been waiting for this type of system for a very long time. there is nothing better for the factory ecm. the only thing better then this setup is a xfi or fast system