Mishimoto Air Intake for Ford Focus RS 3in Aluminum Pipe Full Replacement Kit

Mishimoto Air Intake for Ford Focus RS — 3in Aluminum Pipe Full Replacement Kit Upgrade your 2016–2018 Ford Focus RS with a complete Mishimoto air intake system engineered for performance, fit, and reliability. This full replacement kit swaps the OEM airbox and intake pipe for a 3" aluminum pipe and a purpose-built airbox that improves airflow while maintaining factory fitment. Full replacement kit: Includes 3" aluminum intake pipe, tuned airbox, brackets, clamps, and hardware for a direct bolt-in installation. Improved airflow: Open-top airbox design reduces pressure drop and exposes the filter to increased volume while sealing against the hood to maintain enclosure. Cold air sourcing: Uses factory inlet ducts to draw air from the front of the vehicle; ports finished with weatherstripping to minimize movement and ensure a secure seal. Performance gains: Hundreds of miles of road testing and dyno validation show repeatable gains up to 12 hp and 15 ft-lbs of torque on a stock tune. Easy installation: No cutting or modification required — direct bolt-in for 2016–2018 Focus RS. Durability & warranty: Precision-welded aluminum pipe and reinforced airbox backed by the Mishimoto Lifetime Warranty. Engineered with extensive testing and development, this intake balances measurable power gains with real-world drivability. For installation guidance and development notes, visit the Mishimoto engineering blog.