PSR 05-01354-22 Smog Air Injection Block Off Plate Black CNC Aluminum

The PSR 05-01354-22 Smog Block Off Plate is a precision CNC-machined aluminum air injection block-off plate designed to cleanly seal air injection ports on your motorcycle. Whether you're tuning for maximum performance or simply cleaning up your engine bay, this black anodized plate delivers a secure, leak-free seal with a clean factory-quality appearance.

Why Block Off the Air Injection System?

On modified sportbikes, the factory air injection (secondary air injection / SAI) system can introduce excess oxygen into the exhaust, causing backfires in the headpipes and muffler. This is especially problematic when running an aftermarket fuel management system such as a Dynojet Power Commander with Autotune — the additional oxygen skews O2 sensor readings, making accurate fueling impossible. Blocking the air injection ports resolves these issues and provides a clean baseline for dyno tuning.

Key Features:

• CNC machined from high-grade aluminum for precise fit and a reliable seal
• Black anodized finish for a clean, corrosion-resistant appearance
• Safely blocks and seals air injection (smog) ports
• Reduces excess equipment weight by allowing removal of associated valves and hoses
• Supports accurate air-to-fuel ratio measurement during dyno tuning
• Compatible with EFI bikes running O2 sensors and aftermarket fuel tuners
• Simple bolt-on installation with no permanent modifications required

The PSR 05-01354-22 is an essential upgrade for riders removing or bypassing their secondary air injection system as part of a performance build or exhaust upgrade.