COBB Stage 1 Power Package (613X01) | Subaru WRX 2006-2007 / STI 2004-2007 / Forester XT 2004-2006

The COBB Stage 1 Power Package delivers a refined increase in performance by improving airflow and engine efficiency across Subaru turbo platforms. Designed as a foundational upgrade, this package provides smoother throttle response, enhanced drivability, and consistent power gains while maintaining OEM-like reliability.

KEY FEATURES

• Improves engine breathing for smoother, more responsive acceleration
• Calibrated to pair with COBB Stage 1 mapping for predictable power gains
• Designed for clean, reliable integration on Subaru turbocharged engines
• Constructed from high-quality materials to withstand heat and long-term use
• Ideal first-step upgrade for stock or lightly modified vehicles

TECHNICAL SPECIFICATIONS

• Engineered airflow path maintains stable MAF metering
• Heat-resistant construction helps reduce intake temperature variability
• Precision components designed to operate within COBB tuning strategies
• Optimized for compatibility with OEM and aftermarket exhaust systems
• Supports consistent boost response under repeated load

VEHICLE FITMENT

• Subaru WRX 2006-2007
• Subaru STI 2004-2007
• Subaru Forester XT 2004-2006

COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.