Audi TT V-Flow Intake Install Instructions

Start with your Phillips head screw driver and remove the three screws on top of your battery cover. Then remove the battery cover from the car.
Firmly grasp the plug on top of your MAF sensor unplugging it. Lay the plug back away from the intake system.
Using your Phillips head screwdriver loosen the hose clamp next to the MAF housing.
You will notice a hose with a 90 degree bend and a small plastic ring around the end of it snapped into place at the bottom of the factory air box. Firmly squeeze the top and the bottom of that ring squeezing together and pull the hose off of the factory air box. Pull the hose back and tuck it back out of the work space.
Grasp the hose connecting to the MAF housing and remove it from the MAF housing. Let it rest up against the MAF housing
Take the 10mm socket, extension, and wrench. Remove the two bolts that secure the factory air box to the car. One is behind the negative battery terminal and the other is at the opposite corner of the air box, in front of the driver’s side strut tower.
Next you will remove the factory air box. First lift up on the side closest to the engine, and then lift up on the side closest to the fender. As you lift up on the fender side you should notice a large rubber peg slide out of a hole in the fender lining, If your car has the fresh air duct that was attached to the air box running along side the inside of the fender, you will notice that the air box should come separated from this fresh air duct.
If your car has this fresh air duct, take your 10mm socket, remove the nut that secures the factory fresh air duct to the side of the fender. Then remove the short piece of ducting.
Attached to your air box, which has now been removed from your car, is the housing for your MAF sensor.
Using your Phillips head screwdriver, remove both screws that attach your MAF housing to your factory air box. Then remove the MAF housing from the side of the factory air box.
Next, take the silicone reducer and slide the smaller end onto the MAF housing. If you look at your MAF housing you will notice an arrow indicating air flow. Make sure that arrow is pointed away from the silicone reducer.
Another way to be sure you are attaching the silicone reducer to the proper side, is to note that the reducer goes on the same side that used to be on the outside of the factory air box when the MAF housing was attached to it.
Next, take your 6” venturi and your 3 threaded studs. The studs will have one end with red on it. This red end is threadlock, insert the red end into the venturi and tighten each stud using the 3mm alen wrench. Tighten them until the red section is completely inserted into the holes in the venturi.

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