This Cupra 280 came in with all the hardware required . Baseline power and torque showed throttle closure due to overboost. The lack of back pressure without correct tuning causes this and can be detrimental to the turbo itself. Increasing turbo speed, maf targets and torque limits alone will not help.. but careful PID tuning will create a car thats hits its target consistently.

Baseline power: 297 Bhp
Baseline torque: 385 Nm