PSR Air Injection Block Off Plate Black

The PSR Air Injection Block Off Plate line gives sportbike and street motorcycle owners a clean way to delete the factory air injection system (also called PAIR, smog pump or secondary air injection). Each plate blocks and seals the air injection ports so fresh air no longer enters the exhaust system.

Key Features:

• CNC-machined aluminum construction for a precise fit and reliable seal
• Safely blocks and seals off the air injection ports
• Allows removal of excess equipment weight, such as the associated valves and hoses
• Enables accurate air-to-fuel ratio measurement on the dyno
• Helps prevent exhaust backfires. On modified bikes, unburnt fuel can combine with the extra oxygen from the air injection system.
• Helps O2 sensor readings stay accurate when tuning EFI bikes

Removing fresh air injection is a common step when remapping fuel delivery or installing tuning tools such as a fuel controller with autotune. This is because the extra oxygen can skew O2 sensor values. PSR block off plates give you a simple, durable way to complete the job.

Note: For closed course use only.