2008-2014 Subaru STI — Turbo

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1. 1

   Garrett

   Garrett turbos (particularly the GTX line) are the community standard for 08-14 STI builds seeking reliable, efficient upgrades with proven spool characteristics and longevity on this platform.

   Widely available through major performance retailers and turbo specialists.

2. 2

   Precision Turbo

   Precision's Street and Race series turbos are extensively documented on STI forums for custom builds; their 6466 and 6870 variants are popular choices for this chassis with strong track records.

   Widely available through major performance retailers and turbo specialists.

3. 3

   IHI

   OEM Subaru turbo supplier; OEM replacement and upgraded IHI variants (like those in later STI models) are trusted bolt-on options for reliability-focused builds on the 08-14 platform.

   Available through Subaru dealers and performance retailers specializing in OEM upgrades.

4. 4

   Turbonetics

   Known in the Subaru community for affordable, reliable turbo options; their applications for this generation STI offer solid value and documented fitment.

   Widely available through major performance retailers.

5. 5

   BorgWarner

   BorgWarner's EFR line (particularly the EFR7163) has gained traction on 08-14 STI forums for users seeking modern efficiency and responsive turbo characteristics.

   Widely available through major performance retailers and turbo specialists.