The HPS 837-566 cold air intake relocates the air filter outside the engine bay to pull in the coolest, densest air possible — delivering dyno-proven gains of +27.1 whp and +26.8 ft/lbs of torque on the 2008–2014 Subaru WRX 2.5L Turbo. The kit can also be converted to a shortram setup for a different power delivery profile.

Key Features

• Dyno-proven: +27.1 whp / +26.8 ft/lbs torque with improved throttle response
• 3" mandrel-bent aluminum intake tube replaces the restrictive stock airbox
• Relocates filter outside the engine compartment for maximum cold air effect
• Converts to shortram intake setup
• No tuning required — does not trigger CEL
• No modification required for installation
• Includes step-by-step illustrated installation manual
• Race-proven reinforced silicone couplers and 100% stainless steel T-bolt clamps
• Washable and reusable HPS air filter
• Proudly made in the USA

Vehicle Fitment

• 2008–2014 Subaru WRX 2.5L Turbo

What's Included

• HPS 3" mandrel-bent aluminum intake tube
• HPS heavy-duty steel heat shield
• HPS washable and reusable air filter
• HPS 100% stainless steel T-bolt clamps
• HPS high-temp reinforced silicone couplers
• Mounting hardware
• Illustrated installation instructions

Specs

• Intake Tube: 3" aluminum, mandrel-bent
• Dyno Gains: +27.1 whp / +26.8 ft/lbs torque
• Warranty: 2 Years
• Weight: 8 lbs
• Box Dimensions: 24" × 12" × 10"
• Street Legal: Not legal for sale or use in California

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