Whilst digging around some old car mags, I found the "Total Vauxhall" article on tuning the 2.0XE. It says that the std rear box on the Astra GTE 16v system is quite restrictive. Is this true of the std engine or only a poblem when you start tuning with cams, throttle bodies whatever etc. etc......?
Just wondered if there was any reliable rolling road data to back this up or whether an aftermarket rear box/system just "moves" the torque curve around?