Hess Motorsports Smog Block Off Plates for the Yamaha YXZ1000R (PT# 705018)

• 6061 Billet Aluminum with Stealth Gray Anodizing
• Removes OEM Air Injection System
• Increases Air/ Fuel accuracy for tuning and gages
• Helps reduce the popping back of exhaust systems
• Pairs well with all exhaust systems
• Made in USA