You should get similar gains on the 335i.
Found this blurb - different system, but same concept and same amount of power:
Ford's patented SuperCooler technology cleverly provides a special burst of power for the SVT Lightning concept. Traditional intercoolers dissipate heat from the supercharged air by circulating coolant through a front-mounted, air-cooled radiator. With the SuperCooler system, the vehicle's air conditioning system is used to chill a small storage tank of coolant to about 30 degrees Fahrenheit.
On demand, the SuperCooler system switches the intercooler flow from its normal circulation and dumps the chilled coolant into the engine's intercooler. In turn, the intercooler dissipates up to 20 percent more heat from the charge air - resulting in a denser air charge.
A green light on the instrument panel indicates the system's readiness. SuperCooler is activated automatically when the driver depresses the accelerator to a wide-open-throttle position.
This technology plays directly into the hands of the enthusiast, Coletti says. The SuperCooler provides the edge for the driver, and it is done simply by taking advantage of the hardware that already exists in the vehicle.
As a result of this cool technology, the SVT Lighting concept can give its driver as much as 50 transient horsepower for short bursts of 30-45 seconds and regenerate within 2 minutes under normal driving conditions. While its effect is similar to that of an aftermarket nitrous oxide system, the SuperCooler is completely self-contained, environmentally friendly and regenerative.