This beautifully designed exhaust has a more compact shape to fit with the bike's naked and sporty appearance.It is constructed using hand-crafted carbon fiber parts and finished with a Titanium end-cap in the same perfectly finished race-proven material.Power and torque increases throughout the range and a weight savings over the standard stock system all add to improved performance.It serves up an enriched tone for added aural enjoyment and is EC/ECE type approved.Easy-to-follow plug-and-play instructions with no remapping makes this a simple upgrade to improve the ZX-4R.