When you change any part of your intake, the MAF sensor will no longer be 'calibrated' to match the air flow at all points along the curve. Start Here down the modifying road with the best bang for your buck by treating your vehicle to parts that will increase your power and improve overall driveability.Click to expand.I dunno about your past cars, but Subaru's base their fueling off of their MAF reading (which is a heated wire type, not a vane or spring type). _ WHY?Ĭombining the world's best selling, most flexible ECU upgrade solution, with our Cold Air Intake System to increase air flow and an upgraded rear motor mount to improve traction, COBB brings you the COBB Stage 1+ Power Package for your 2013+ Ford Focus ST. The beautifully machined 6061 billet aluminum mount with zinc hardware will make you sad you have to hide it under your car, but you will be grinning at every stop light! The COBB RMM utilizes unique voids custom molded into the 85A durometer bushing to absorb vibrations, but still reduce engine movement to aid getting all the power to the ground. Typical bushing designs can rattle your teeth out at idle or during throttle input. The COBB Rear Motor Mount is the best way to minimize engine movement, improve traction, and reduce wheel hop without major impact to NVH. Fitment verified for left-hand drive vehicles only. Maintaining the best qualities of the factory intake while improving on the rest, the COBB Ford Focus ST Intake is a bold, performance driven addition to your vehicle that will add a kick to your overall driving experience. It's the last engine management solution you'll ever need. Upgrade forever with off-the-shelf (OTS) calibrations for most bolt-on modifications. Unlock power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations. The Accessport V3 is the world's best selling, most flexible ECU upgrade solution for Ford.

Focus st cobb stage 1