I'm trying to decide between the APEXi, Greddy and HKS Turbo Timer units. I'm leaning towards the APEXi mostly because of the e-brake security system that this unit has. My question is, I haven't been able to find much information on whether Greddy and HKS have similar capabilities as far as warming your car up? Anybody with the Greddy or HKS unit, please chime in and let me know your feedback on these products. Thanks.