Kit configured to re-seal stock or aftermarket pipe with proper new swivel hook pipe springs, "O" Rings, and Hi-temp silencer to pipe coupler. If unsure, please check coupler image #2 for measurements and OEM part number for reference. Replaces factory equipment with exact fit quality parts. Kit comes complete with what you see. Designed to fit KTM 125cc 150cc & select 200cc ('00 to '10)*, Husqvarna TC TE 125cc '14+, & TE150cc '14+, and GASGAS MC125cc '21+ Complete set, nothing else needed to seal up your two stroke exhaust pipe. Product Description: Expansion Chamber Seal kit for 2-Stroke 125 150 *200 cc Euro Dirtbikes KTM SX, GasGas MC, & Husqvarna TC TE Motorcycles. Kit replaces old factory parts with fresh springs, o-ring seals, and pipe to silencer coupler.