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  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System
  • Cobb [11 - 14 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB0031S3F-BKStealth Black Intake System

COBB Tuning

COBB Tuning Be the first one to review

COBB Stage 3 + Flex Fuel Power Package - Cobb Blue/Stealth Black Intake

Fits: 11-14* STI Sedan

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$6,15500
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Auto Parts Store of the Year 2026

COBB Tuning COBB Stage 3 + Flex Fuel Power Package - Cobb Blue/Stealth Black Intake
Fits: 11-14* STI Sedan
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Fitment

Please Note: 2011–2014 Subaru WRX STI sedan; approved fitment bucket is 2008–2014 WRX STI, so the title range is intentionally narrower.
  • 2008-2014 Subaru | WRX STI

Description

The COBB Stage 3 + Flex Fuel Power Package combines Accessport V3 tuning with the airflow, exhaust, fueling, and flex-fuel hardware needed for a comprehensive STI sedan performance upgrade. It is intended for the listed 2011–2014 Subaru STI sedan applications and supports staged OTS maps or custom tuning.

  • Fitment: 2011–2014 Subaru WRX STI sedan
  • Includes COBB Accessport, SF Intake System, and SF Airbox
  • Includes stainless steel 3-inch downpipe, cat-back exhaust, and turbo heatshield
  • Includes flex-fuel ethanol sensor and fuel-pressure sensor kits
  • Includes AEM high-flow fuel pump, Top Feed 1050x injectors, rails, lines, regulator, and related couplers
  • Cobb Blue or Stealth Black intake option
  • Use preloaded OTS maps or custom mapping for the modification level
  • Not legal for sale or use in California on emissions-controlled motor vehicles
  • Official reference: COBB product search

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Warranty and Support

Limited Manufacturer Warranty

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