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J1 Automotive

J1 Automotive Focus RS Mk2 Air Intake Kit


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This performance Air Intake Kit includes an Air Cleaner Cover replacement, a Performance Air Filter and Silicon Primary and Secondary hoses for the Ford Focus RS Mk2.

With an increased intake effective cross sectional area, and improved air cleaner internal volume, the air intake's restriction has dropped by over 50% allowing more air into the system increasing both engine torque and power. The performance Air Filter improves breathability compared to the standard paper filter, and the silicon hoses provide a smoother flow and offer a more robust solution to the existing convoluted hoses. Offered in Green, White or Blue, this kit can also improve your underbonnet styling.

The installation is simple and quick, no modifications are required, and full instructions are included.

This kit is suitable for the Focus Mark 2, manufactured from 2009 onwards.

Kit includes;

  • High Quality Polycarbonate Air Cleaner Lid (integrated Green, White or Blue 'j1' logo)
  • Nylon Cable Tie
  • High Performance cotton (Pre oiled) Air Filter
  • Primary Silicone intake Hose (Green, White or Blue)
  • Secondary Silicone intake Hose (Green, White or Blue)
  • Fitting Instructions

System pressure loss is reduced by over 50% (increased intake section, Increased Air Cleaner volume, Cotton Air Filter, Silicon Hoses) boosting engine torque and power - 10.7 BHP at peak on standard non remapped cars, and improved torque of +32 lb.ft in the mid range.

Key Benefits;

  • Well engineered products,
  • Power increase of 10.7 BHP on non adjusted cars (Vehicle Dyno Tests*),
  • Increases in Torque of 32lb.ft (Vehicle Dyno Tests**),
  • Easy installation (10 minutes),
  • UK Designed, Developed and Manufactured,
  • High Quality products,
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