COMPATIBLE: 

2003 - 2006 BMW X5 4.4i (4.4L-N62B44)

2004 - 2006 BMW X5 4.4is (4.8L-N62B48)

2004 - 2006 BMW 545i (4.4L-N62B44)

2004 - 2006 BMW 645Ci  (4.4L-N62B44)

2003 - 2005 BMW 745i (4.4L-N62B44)

2002 - 2005 BMW 745Li  (4.4L-N62B44)

Many people seem to be under the false impression that the new Valvetronic engines don't have a throttle body. This is clearly not the case however the throttle body for these applications functions as part of the traction control system, as well as a ''safety valve'' of sorts. Regardless of the function the size of the hole still represents a restriction of intake air-flow, making the larger bore of the Dinan high flow versions enable the engine to breathe better for more horsepower and torque, most effectively in wide-open throttle scenarios.

• More Power (E60 545i & E63 E64 645Ci): + 5 HP @ 6500 RPM, + 4 LB-FT @ 5500 RPM (coupled w/ engine software)

• More Power (E65 E66 745i): + 8 HP @ 6500 RPM, + 8 LB-FT @ 5500 RPM (coupled w/ engine software)

• More Power (2004-06 E53 X5 4.4i): + 8 HP @ 6500 RPM, + 8 LB-FT @ 5500 RPM (coupled w/ engine software)

• More Power (E53 X5 4.8is): + 8 HP @ 6500 RPM, + 8 LB-FT @ 5500 RPM (coupled w/ engine software)

• Improved throttle response

• Bored 3mm larger for a 8% increase in air flow area

Install Guide:

WARRANTY: