COBB Subaru VA STI Front Mount Intercooler
Subaru STI 2015 - 2021

Table of Contents 

Congratulations on your purchase of the COBB Tuning Front Mount Intercooler Kit. The following instructions will assist you through your installation process. Please read them first BEFORE beginning the install and familiarize yourself with the steps and tools needed. If you feel that you cannot properly perform this installation, we HIGHLY recommend you take the vehicle to a qualified and experienced automotive technician.

IMPORTANT! Installing this kit will require custom tuning or utilizing an appropriate Stage Power Package map. Please consult with COBB or an authorized ProTuner in your area.

Parts List

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• 1 x Intercooler Core
• 1 x Bumper Beam
• 4 x 12mm Bolt
• 4 x 12mm Nut
• 1 x Coolant Overflow Reservoir
• 1 x Coolant Overflow Reservoir Bracket
• 2 x M6x16 Flange Head Bolt
• 1 x M6x25 Flange Head Bolt
• 1 x T-Fitting
• 1 x 90 Degree Fitting
• 1 x Upper Hot Pipe Support Bracket
• 1 x M6x20 Bolt
• 1 x 2' Vacuum Hose
• 1 x 6" Vacuum Hose
• 1 x Washer Fluid Reservoir Adapter
• 1 x Washer Fluid Reservoir Silicone Extension Hose
• 1 x Washer Fluid Reservoir Silicone Cap
• 3 x Spacer
• 2 x 10mm Bolt
• 1 x 10mm Nut
• 2 x Aluminum Bushing
• 2 x Rubber Insert Bushing
• 3 x Zip Ties
• Hot Side Piping
  • 1 x 3" - 2.5" silicone reducer
  • 2 x 2.5" silicone coupler
  • 1 x 2.5" - 2" silicone elbow
  • 6 x #44 clamp
  • 1 x #48 clamp
  • 1 x #40 clamp
  • 1 x lower hot pipe
  • 1 x mid hot pipe
  • 1 x upper hot pipe
• Cold Side Piping
  • 1 x 3" - 2.5" silicone reducer
  • 2 x 2.5" silicone coupler
  • 1 x 2.5" - 2.75" silicone reducer
  • 1 x 35mm silicone coupler
  • 1 x #48 clamp
  • 7 x #44 clamp
  • 2 x #20 clamp
  • 1 x lower cold pipe
  • 1 x mid cold pipe
  • 1 x upper cold pipe 

Tools Needed

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• Flat Head Screwdriver
• Phillips Head Screwdriver
• Trim Removal Tool
• 10mm 3/8" Socket
• 12mm 3/8" Socket
• 3/8" Ratcheting Wrench
• 3/8" 18" Socket Extension
• 12mm Socket Screwdriver (Optional)
• 10mm Socket Screwdriver (Optional)
• Diagonal Cutters or Scissors; (Hose Cutting tools suggested for straightest cuts)
• 5/16" Hex Key
• Safety Glasses
• Gloves
• Rags
• Silicone Spray or Similar
• Windshield Washer Fluid and Water Repellent Additive