UK customers - please note this silencer is not road legal in the UK and will be marked Not for Road Use Motorcycle Exhaust Full System Fits: Hyosung GT250R, GT250 COMET GTR250 (All Models) - Full Exhaust System and 230 mm Round Stainless Steel Slip On Silencer with GP Tip. - Direct replacement for the original exhaust system. - Unique to our system is the removable 4 bolt silencer mounting flange which is also included, this means you can re-fit your original Hyosung silencer when necessary. - Accepts the original Lambda (O2) sensor. - See kit photo for what's included. - Header Pipe Material : 304 Grade Stainless Steel. - Silencer Material : 304 Grade Stainless Steel with 304 Grade Stainless Steel GP Tip. - Silencer Body Length excluding .