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Dinan's Upgraded Fuel Pump improves the pump's capacity to draw fuel and allows full flow of fuel to the engine during high demand operation. The experience of loss of power due to inadequate fuel supply is not an issue anymore and you can push the car hard continuously during a track event or other high demand application without worry. Above all, Dinan upgraded fuel pump can be properly controlled by the factory DME resulting in no faults or warnings on the iDrive. Just reliable and dependable power all the way to redline. The upgrade kit is also available for those that wish to modify their existing fuel pump.