Hartge ECU modification for BMW 335i

Hartge has released another engine modification by an additional ECU, available for the 1 series 135i, the 3 series 335i, 335xi, 335 xDrive and also for Z4 sDrive 35i. This ECU are based on the 350hp engine. All Hartge engine components and chiptuning are tested on the bench and on the road before being approved for sale. HARTGE conversions for all BMW models is made by BMW engine specialist