In our workshop today was this 7,000 mile Corsa E VXR with the latest version of the 1.6 Turbo engine, B16LES. The first job was to remove the restrictive pre cat (first cat) and fit one of our straight through downpipes (pre cat removal pipe). Once fitted it was round into the dyno cell for remapping with full rolling road set up.
Running on Shell V-Power (99RON) fuel the results were 235bhp and 248 lb ft torque, with power and torque gains right across the rev range.