Borla T-304 Stainless Steel Exhaust Header for 2002-2012 Subaru Impreza & Legacy - 17217

Fits select 2002-2012 Subaru Impreza (WRX, STI, 2.5i, Outback Sport) and 2005-2011 Legacy (GT, 2.5i) models. This high-performance exhaust header is engineered to replace the restrictive factory manifold with a high-flow design that optimizes exhaust gas scavaging.

Constructed from premium T-304 austenitic stainless steel, this header offers superior corrosion resistance and durability compared to standard T-400 series or 409 stainless steel alternatives. The 1.625" primary tubes lead into a 2.25" collector, utilizing ultra-smooth mandrel bends to maintain consistent internal diameters and maximize power output. To ensure long-term reliability under heat cycling, Borla integrates a unique, stiffened flex joint into the assembly. Precision CNC manufacturing guarantees an accurate fit to the factory mounting points.

• Material: High-quality T-304 austenitic stainless steel
• Primary Tubing Diameter: 1.625"
• Collector Diameter: 2.25"
• CARB Compliance: Executive Order (E.O.) # D-276-12 (covers 2001-2003 Subaru Impreza WRX)
• Construction: Mandrel-bent tubing with CNC-machined flanges
• Warranty: BORLA Million-Mile Warranty
• Manufacturer Part Number: 17217

Installation Note: Gaskets are NOT included. It is recommended to reuse the Original Equipment (O.E.) gaskets if in good condition or purchase new gaskets separately for a leak-free seal.