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  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System
  • Cobb [15 - 18 STI] Stage 3 + Flex Fuel Power Package - JDMuscleEngine Package DealscobbSUB004103F-BLCobb Blue Intake System

COBB Tuning

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

Fits: 15-18 STI

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$6,22000
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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: 15-18 STI
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Fitment

Please Note: 2015–2018 Subaru WRX STI applications; exact bundle range retained from the product listing.
  • 2015–2021 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 performance upgrade. It supports staged OTS maps or custom tuning for the listed 2015–2018 Subaru STI applications.

  • Fitment: 2015–2018 Subaru WRX STI
  • 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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