Designed specifically for EJ257-powered STI models (2008–2021), this package improves intake efficiency, exhaust flow, and turbo response while maintaining reliability and daily drivability. Ideal for those looking for a solid performance increase without upgrading the turbo or fuel system.

• Cobb Intake with Airbox
• Invidia Catted Downpipe
• Cat-Back Exhaust (Customer’s Choice optional but recomended for best results)

• 91 Octane required
• Power figures are estimated at the crank and may vary based on dyno conditions, and vehicle health, we run a Mustang Dynamometer which tends to read 15%-20% LOWER
• Custom tuning required
• Pre-dyno inspection required
• Recommended: TGV Deletes, Air Pump Deletes, Oil Pan & Pickup Upgrades for improved reliability