If you get the EMS, just go to Enthalpy and get it dyno tuned. Hes not one of those tuners that just does WOT tuning. He can get your driving around tuning just like stock. His 550+whp 240sx on 96lbs injectors and huge cams idles practically as well as a stock KA. and past 1500rpm it drives smoothly and easilly. There really is no reason to sacrafice drivibility when you have a standalone, tuning fixes all those things, hell you'll prob get better than stock gas mileage as well.