Well, the exhaust and extractors are a hit ... fantastic 'note' from the rig now, definitely a bit more toe off the mark, but the biggest difference (apart from the noise ... did I mention the noise?? Love it!!!!) is the torque - never realised that it would 'affect' it that much as such, but seems to hold speed really well now up hills without dropping back a gear, and generally picks up speed heaps better ... will be interested to see on the next decent highway run if I am getting any reduction in consumption ...