Want to extract a little more power from your car? A half system is the perfect compromise, leaving the factory catalysts (where fitted) in place and bolting directly to the OEM system. Most of our half-systems delete the centre cat or silencer, for improved gasflow and sound, but leave the car fully road legal and MOT ready. This system has been constructed utilising state-of-the-art manufacturing processes and advanced materials to give a dramatic reduction in weight over O. This exhaust has been power optimised for your vehicle to give optimal model specific performance increases across the entire usable rev range.