Smog Block Off Plate

PSR Smog Block Off Plate Reduce weight • Seal air injection ports • Improve dyno accuracy The PSR Smog Block Off Plate is CNC machined from high-grade aluminum to provide a precise fit and reliable seal. Engineered for closed-course use, it allows safe removal of smog-related hardware and ensures accurate air-to-fuel ratio measurement during dyno tuning. Precision Fit: CNC machined for consistent alignment and leak-free sealing. Durable Material: High-grade aluminum resists corrosion and retains shape under heat. Weight Reduction: Eliminates excess components for lighter setups. Dyno-Ready: Safely blocks air injection ports to enable accurate AFR readings. Use Restriction: Closed course use only — not for street emissions compliance. Ideal for tuners and racers who require dependable sealing and repeatable dyno results. Easy to install and built to last, the PSR Smog Block Off Plate is a practical upgrade for performance testing environments.