This Power Pack is a direct plug in to the existing engine harness for a factory appearance and fitment and an instant 56hp gain on the 2012 F30 328i ( available for the F30 335i as well! ) It installs in under two hours and is completely reversible which makes this the easiest and most cost-effective power upgrade you will ever make on this car. Available for many new BMW models including the F30 3-series and F10 5-series.