IAG Performance / Crest CNC Stage X 2.5L Subaru Billet Aluminum Short Block For WRX, STI, Legacy GT and Forester XT. Built power output rating 1000+BHP.
K&N Premium Oil Filter: Designed to Protect your Engine: Fits Select INFINITI/MAZDA/NISSAN/SUBARU Vehicle Models (See Product Description for Full List of Compatible Vehicles), HP-1008 - Walmart.com
Takeda Attack Stage-2 Pro Cold Air Intake System w/Pro DRY S Filter Media | aFe POWER
Takeda Retain Stage-2 Cold Air Intake System w/Pro DRY S Filter Media | aFe POWER
Subaru WRX - Wikipedia
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HPS Black Shortram Air Intake Heat Shield+Filter For 08-14 Subaru WRX STI 2.5L | eBay