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: