Congratulations on your purchase of the COBB Tuning Intake Adapter for the Fiesta ST! The following instructions will assist you through the installation process. Please read them BEFORE beginning the install to familiarize yourself with the steps and tools needed. If you feel you cannot properly perform this installation, we HIGHLY recommend you take the vehicle to a qualified and experienced automotive technician.
Machined Aluminum Adapter
Silicone "T" Hose Assembly
Uninstall Factory Assembly
This kit is intended to be used with with the COBB Tuning Fiesta ST Intake System P/N 701100 or 702100. Please reference these instructions for uninstalling the stock intake.
For a 2016-2017 MY, un-clip the PCV hose from the stock intake tube by squeezing the plastic ring and pulling away from the tube.
For a 2016-2017 MY, Remove the two (2) connectors with the green clips and pull back the red tab on the MAF sensor attached to the airbox and unplug the sensor. With your hand, follow the hardline coming from the larger of the two connectors until you find the clip connecting the other end to the lower intercooler piping. Unclip this and remove the entire stock hardline. Remember where this connection is as you will need to connect the intake adapter to it later.
Installation of COBB Adapter Kit
This kit is intended to be used with with the COBB Tuning Fiesta ST Intake System P/N 701100 or 702100. Please reference these instructions for installation of the COBB intake.
For a 2016-2017 MY install the supplied 7/8" tubing from the COBB Tuning Fiesta ST Intake System onto the plastic barbed fitting on the back of the intake and tighten it down using the supplied worm clamp from the COBB Tuning Fiesta ST Intake System. Feed the tubing beneath the COBB intake and wrap it around to meet the stock PCV tube coming from the valve cover. Mark the point where the two meet on the 7/8" tube and cut the tube to this length. After cutting the tube it should be approximately 14" long. Next slide the other worm clamp from the COBB Tuning Fiesta ST Intake System on the 7/8" tube and insert the supplied aluminum PCV adapter to the end and tighten the worm clamp. (Refer to picture on left). Now you should be able to route the tube with connector under the intake tube to meet the stock PCV connection. You can rotate the head of the stock PCV connection so that the two connectors meet nicely. Push the connectors together tightly until you hear a click. It should look something like the picture on the right when done. You can adjust the final position of the connection later for best fitment.
Now that everything is in place you can connect your intake adapter. Before beginning, check that the flow direction arrow on the small check valve next to the tee fitting is pointing toward the tee fitting on the adapter. There is also a small aluminum insert inside of the tee fitting on the side with the longer hose. Check that this insert is fully seated into the tee fitting by squeezing the long silicone hose near the fitting. If it feels like there is a cylindrical piece protruding from the tee fitting more than 1/4", it is likely that this insert is not fully seated. If this is the case, you will need to remove the long silicone hose from the tee fitting and seat the aluminum insert. This can be done by pushing the thin end of the insert into the tee fitting and pressing firmly on the end with your thumb until the thinner portion of the aluminum insert is no longer visible and you have reached a hard stop. Once the insert is seated you can replace the hose and continue with your install. Begin by connecting end (1) to the port on the intake tube. Then connect end (2) to the intercooler pipe where you removed the stock hardline form earlier. End (3) will connect to the remaining stock hardline. The routing should look like the picture on the right when completed.
Finally, make sure all three adapter connectors are clipped shut and securely attached.
Congrats on the installation of your new COBB Tuning 2016-2017 Fiesta ST Intake Adapter Kit!