This car had been to us previously for install of the JB4, decat downpipe and Cobra cat-back system. At the time the car had winter tyres on which can give distorted dyno figures.
Now with the summer wheels/tyres fitted we re-tested it an saw a massive improvement in testing over the winter tyres. Another brilliant M135i making over 400 bhp!
Power: 407 bhp
Torque: 592 nm