It packs in a punch of 1600hp theoratically predicting it will reach over 290mph but so far tested hitting 256mph.
Our tune shop excellent idea configurated by me by having it optional to turn on/off the turbo in 3 stages using the special button on the steering wheel.
Stage 1 (Default/off) (590hp/201mph) turbos disabled making the car drive N/A.
Stage 2 (on) : (800hp/256mph) 2 turbos enabled
Stage 3 (on) : (1600hp/290mph but theoratically predicting) all turbos enabled
The custom quad turbo kit is hard to explain how it works.