http://www.revotechnik.com/products/pdf ... e_V2.3.pdf
It has the benefit of being able to adjust variable boost and timing control on Revo Stage 2 flashed ECUs. This functionality allows the user to adjust the car to varying degrees of performance by changing the boost pressures from the turbo. It allows the user to use any grade of fuel at any time without the worry of damage to the engine. It also can be adjusted to take full advantage of race fuel or octane boosters that are typically out of the range of any performance software. All safety mechanisms and routines are left intact to prevent the user from setting the engine to operate outside of the safety limits. The SPS 3 device allows the user to change the boost and timing of the vehicle.
