Dinan BMW (Sedan - 4.8) Fuel Injection Throttle Body

D760-3650A

THROTTLE BODY N62 550 550 650;Stage 3 Engine Software recommended for optimum performance and drivability.;Dinan High Flow Throttle Body - 2002-2006 BMW 550i/650i/750i;E60/E63/E64/E65/E66;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: + 4 HP @ 6500 RPM, + 3 LB-FT @ 6100 RPM (coupled w/ engine software);Improved throttle response;Bored 7mm larger for a 18% increase in air flow area