BMW M4 570BHP dyno power run

BMW M4 convertible in with us today for one of our Garage Whifbitz M4/M3 full exhaust in stainless steel incorporating our single midpipe design.

We also installed wheel spacers, Garage Whifbitz extra clearance exhaust brace and Bootmod3 stage 1 OTS map.

The power went from 470bhp to 559bhp and the customer is now rather happy 😄

If you want your M car modified or maintained please get in touch.
www.garagewhifbitz.co.uk