HGS Fantic Werx 2 Stroke Expansion Chamber 505SX Nihilo’s new factory washers are

Nihilo’s new factory washers are lighter and stronger than the stock washers and come in anodized blue to match your bike

Mounting brackets are cut from hardened steel

this kit delivers OEM-quality performance with improved resistance to dirt

Option to buy kit including High-quality nitrogen bladder conversion kit (replaces OEM floating piston)

HGS Fantic Werx 2 Stroke Expansion Chamber 505SX Nihilo’s new factory washers are2 Stroke Expansion Chambers Werx Finish Factory style finish. Unrivalled HP increase. Improved throttle response. HGS exhausts are designed to work as a system unless otherwise stated. The above product photos are used for illustration purposes only and may vary slightly.