PROX Inlaatklep Titanium - Yamaha YZ450F } Boyesen engineers have applied

} Boyesen engineers have applied a range of technical innovations to their range of intake systems to ensure optimal power

They are 40% lighter and 20% lighter than the original Motocross parts

Hardcoated for extreme boot wear resistance

• Multi-density Expanded Polystyrene (EPS) Technology provides a

What Changes were made with EXP 4

PROX Inlaatklep Titanium - Yamaha YZ450F } Boyesen engineers have appliedTitanium intake and exhaust valves from Prox offer maximum resistance and light weight. Titanium intake valve Forged from one piece Coated with plasma: better thermal resistance and longer service life Recommended in the context of engine tuning Delivered per piece