Designed for track-day use, the Racing Line represents a full step in exhaust tuning Power and torque are improved across the range for increased performance levels Made from lightweight titanium for the muffler outer sleeve with stainless-steel headers to provide a weight savings over the stock system and improve handling Delivers a deeper and sportier sound for enhanced enjoyment Simple plug-and-play installation requires remapping Fits on motorbikes with stock exhaust with double lambda sensor. EXHAUST RACE TI KAWASAKI NINJA / Z 650