Required for ATP Turbo Kit: 

1. Vacuum fitting adapter (Vacuum Source Block for 2014+ Fiesta ST)

2. 6 feet of vacuum hose (4.7mm inner diameter extruded silicone vacuum hose)

3. Diverter Valve and/or Blow-Off Valve (BOV). Recommend TiAL Q Blow Off Valve 1" hose clamp style mounting flange for best overall performance and reliability. Plugs to the 1" port on the Hot charge pipe provided with each kit.

The stock turbo has an integrated "electric" diverter valve, which expels boost on throttle lift. The stock turbo compressor housing has an integrated “electric” diverter valve. 

Upgrading to a Garrett GT/GTX turbo eliminates the stock “electric” diverter valve through replacement of the stock turbo. The stock “electric” diverter valve offers limited flow potential and inadequate for increased airflow from an upgrade performance turbo.

Replacement of stock “electric” diverter valve is necessary; and requires a high flowing “mechanical” or vacuum actuated valve to handle increased flow on throttle lift from an upgrade performance turbo.

Note, the Fiesta ST runs perfectly with a vent to atmosphere BOV and will not cause drivability issues. Although we recommend a TiAL Q Blow Off Valve for overall durability, you can use ANY brand of valve you choose and trust.

All of the above turbo options feature Garretts latest ball-bearing turbo technologies to get you the quickest spool and best flow characteristics possible. The GTX turbo's take this one step further featuring Garrett's most advanced billet compressor wheels which increase turbo response while also moving more air, this equates to better driveability as well as more power! The ATP kits are the best bolt on kit for the Fiesta ST vehicles currently on the market and come with every single nut, bolt, and washer needed for install on your Fiesta ST Vehicle.

Here are some of highlights of the ATP Turbo Kits:

• Direct bolt-on to stock location. All you need to run this turbo on your Fiesta ST is this kit and tune, an AccessPort, and an external blow off valve. We can get you any of these parts at your request.
• Internally Wastegated
• V-band flanged turbo adapter 
• Stock turbo flanged downpipe compatible
• Stock placement intake pipe compatible. Adapter elbow provided.
• New steel braided oil feed and coolant lines provided
• Fits stock oil drain tube
• High flow charge air pipe included with 1" bung for external BOV

Follow this link to see exactly what is included in the ATP turbo package as well as the installation instructions: 

ATP Turbo Package Contents and Install Instructions