• Used to eliminate air pump and related valves found on Subaru WRX - 2006 & later, STI 2008 & later (2007 STI only needs driver's side plate), and Legacy GT - 2007 and later.
• Blocks off the air injection ports at the cylinder heads.
• Saves weight, reduces complexity, cleans up engine compartment - easier to work on.
• Includes a block-off plate for the right and left sides.
• Gaskets are optional but recommended.
• Made in USA out of 5mm stainless steel.
• Same thickness as the stock flanges
• Allows re-using the stock hardware.
• Optional stainless hardware is available for those who need or want it.
• Not emissions legal - "for offroad use only!" Air pump is used only at start-up for a few minutes.
• CEL codes will need to be turned off in the ECU - consult your tuner or engine management supplier.

Eliminate all the following virtually-useless parts from your cluttered engine compartment: