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Just program your own
which shows up as improved spool speed and better mid-range boost delivery before the downpipe is even touched
While these springs are designed to work well with factory shocks
elevating your street car performance
Featured In Subispeeds Aero Mod Guide
Killer B 1/2NPT Plug - 2006-2014 Subaru WRX / 2004-2021 STI / 2006-2013 Forester XT Subaru-Legacy-2024 Just program your ownThis is the Killer B Motorsport 1 2 NPT Plug. This plug can be used for several applications and purposes that include plugging water, oil, or fuel provisions, and will provide a tight seal. Killer B Motorsport 1 2NPT Chrome Plated Steel Plug SPECS: Plugs the oil or water line provisions Can also be used for fuel or other 1 2 NPT thread pitch Sold individually