We had another Astra J VXR in for mapping this week and it is good news that we are now seeing more and more of them. ECU remapping alone makes such a big improvement.

Otherwise a standard car, the ecu was treated to some enhancement offering much more mid range power and torque with good top end gains too, and the software was optimised, whilst the ecu was datalogged on the rolling road and a full set up carried out, checking AFR, boost pressure, inlet air temperatures, ignition time etc. A massive improvement all round, with mid range gains of between 10-40+bhp and torque with overall peak power at a shade over 300bhp.