Euro 4/5+ homologated muffler set. Titanium slip-ons, from the 'Thunder Series', are much smaller than the stock muffler for a way more aggressive stance. Direct fit to the stock exhaust. With removable Db killer. The laser cut VP logo is proudly shown on each muffler. The end cap is CNC machined Ergal (aluminum 7072) with a black PTFE based coating. The muffler set comes complete with a carbon fiber heat guard, mount brackets and all required hardware for a no hassle installation. Note: The 708892 Racing (no cat) 60mm mid-pipe is optionally available to replace the stock mid-pipe (with catalytic converter) to give the bike its full power. Note that it is required to remap the stock ECE (see 708892 Racing ECU tuning module) for a correct fuel/air ratio. Note: Homologation is valid for unmodified stock bikes, for the specific models and model years as mentioned in the product description. Removing or modifying the standard Db killer or catalytic converters will void the homologation.