Driven Racing Oil DSBLOCK-20 Engine Block Off Plate for Yamaha FZ-09

The Driven Racing Oil DSBLOCK-20 Engine Block Off Plate eliminates unwanted backfires caused by fresh air being injected into the exhaust system on modified sportbikes. This block off plate allows you to achieve optimum fuel/air mixture when tuning and shave some weight off your motorcycle.

Key Features:

• Anodized black finish increases resistance to corrosion and longevity
• Each piece is inspected and laser etched with the Driven logo
• Allows removal of associated valves and hoses to reduce weight
• Provides trouble-free elimination of unwanted air leaks for accurate dyno tuning
• Made in U.S.A.

On late model EFI bikes with O2 sensors, especially when using Dynojet's Power Commander V with Autotune, the air injection system must be blocked to prevent skewed sensor readings. This plate is designed specifically for Yamaha FZ-09 motorcycles and comes as a pair for complete installation.

Important: For race track use only, NOT LEGAL for street use.