Add the iconic S54 ITB and airbox induction system to your M54 engine with the S54 ITB to M54 Adapter. This CNC-machined aluminum adapter plate ensures a precise fit, giving your M54 the airflow benefits of the S54 ITB throttle system. Kit Includes: RRD CNC Aluminum Adapter Plate Screws, washers, and O-rings for installation Optional DBW Actuator Mount: Billet 7075 aluminum bracket for mounting the S54 Drive-By-Wire (DBW) actuator to the M50/M52/S50/S52/M54 engine block Important Installation Notes: Swap the M54 oil filter housing with an M50/S50/S52 housing to avoid clearance issues with the throttle position sensor. Modify the rear of the S54 throttle position sensor to fit around the VANOS solenoid connector. Note: This product is not legal for sale or use on emission-controlled vehicles. BMW M54 Applications: BMW 3 Series 2000-2006 E46 320i / 320Ci2000-2006 E46 325i / 325xi / 325Ci2000-2006 E46 330i / 330xi / 330Ci BMW 5 Series 2000-2003 E39 520i [Europe]2000-2003 E39 525i 2000-2003 E39 530i2003-2005 E60/E61 525i2003-2005 E60/E61 530i BMW 7 Series 2001 E38 730i / 730Li [Europe] BMW Z3 Series 2000-2002 Z3 2.2i / 2.5i / 3.0i BMW Z4 Series 2002-2005 Z4 2.5i / 3.0i BMW X3 Series 2003-2006 E83 X3 2.5i / 3.0i BMW X5 Series 2000-2006 E53 X5 3.0i