The weight reduction of more than 26 kg (57 lbs) in the engine area was derived primarily from the completely new exhaust system. (sybarites.com)
An entirely new exhaust system allows for some theatre, too. (evo.co.uk)
HG - Motorsport's tuning kit includes a completely new exhaust system with a diameter of 89 millimeters, and a new custom high efficiency intercooler, giving the car a small power boost. (car24news.com)