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Discussion Starter · #1 ·
DIY A3 Throttle Pipe

My friend and I installed the pipe this weekend, We agree that 2 pairs of hands make this mod a little easier.
Tools youll need:

7mm Socket
10mm Socket
Phillips Screwdriver
T-20 Hex Bit
T-30 Hex Bit
Vice Grip / Pliers
You can get the Pipe at the VW dealer : PN: 1K0 145 770 K


Step 1 - Take off the MAF Sensor and the Engine Cover

Step 2 - Take off the noise pipe thats on the passanger side of the engine cover.
Ryan says "$m0k3 t3h r1c3 p1p3!"

Step 3 - Take the rock sheild out from under the car. (2 tab clips and 12 hex screws) After you take out the screws, push in the tabs and pull towards the back of the car and it will slide out.

Step 4 - Locate the pipe your going to replace, its dead center in front of the engine. There is a screw at the top and the bottom thats holding it in aswell as a nut in the middle of the pipe.
Step 5 - Take the Boost / Air sensor off the pipe. (You can just unclip it for now)
Step 6 - Take off the top/bottom screws and the nut.
Step 7 - Disconnect the rubber pipe from the top of the pipe your replacing. (youll see why SAMCO pipes wont help, stock pipes are sooo nice)
Step 8 - Disconnect the other rubber pipe off the bottom of the pipe that connects your intercooler.
Step 9 - Remove the pipe.
Step 10 - Unscrew the sensor mount from the old pipe and relocate it to the new A3 pipe.
Step 11 - Mount the new A3 pipe where the old pipe was. Make sure you put 2 screws back on. 1 on the top and 1 on the bottom, aswell as the nut in the middle.
Step 12 - Clip the hoses back onto the pipe and check connections. Connect the boost sensor.
Step 13 - Plug hole where you removed the noise pipe into the firewall.
Step 14 - Put back the engine cover / MAF
Step 15 - Slide back the rock guard.

When I was done, I took it for a spin and my intercooler pipe popped off and the engine bogged bad. make sure you clamp the hoses back on good!
Ask any questions if you have any.
Heres the helps ride:

3.0L VR6, Higher compression, Balanced & Blueprinted, Pistons, Rods, Coilovers, BBS RCs, Cat-back, CAI, LSD.. much more to explain. None the less my favorite VW ive riden in. He is like a wheelman!
Anyways enjoy the better throttle response!

Modified by Supplicium at 12:43 PM 7-31-2006

Modified by Supplicium at 12:45 PM 7-31-2006


Modified by Supplicium at 4:17 PM 7-31-2006
 

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It replaces the the GTi noisemaking intake extension pipe with the A3 intake pipe that does not use boosted air to make noise.
= boost is used in the gti to make accentuated engine sound = wasted boost energy
 

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Discussion Starter · #7 ·
More boost, no.
Faster spool, seems slight (prob not)
Throttle is more touchy, power feels to get to the ground a little quicker.
It feels like how it would feel if you added a CAI thats the best way I can explain what I can feel.
 

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Re: DIY A3 Throttle Pipe (Supplicium)

again i have to ask... why do you have to replace the pipe? why cant you just plug the hole on the stock one?
ohh and what did you use to plug the hole in the firewall in step 13?
 

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Re: DIY A3 Throttle Pipe (Supplicium)

So this is going to be, hopefully not, a stoopid question... because I obviously don't know what I'm talking about... but:
Why not just disconnect the y-pipe where it heads towards the firewall, and install a pipe plug and re-connect it as is? If the air has nowhere to go, then wouldn't it recirculate just like the A3 pipe?
Or does it not just stop there?
 

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Discussion Starter · #10 ·
You can plug it I suppose but you would have to do it at the Y section, plugging it at the firewall would defeat the purpose of the doing the mod then.
What you circled if a cover I installed. Behind that is a big "box" which that noise pipe fills up behind your dash.
 

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Discussion Starter · #13 ·
Re: (00VR6Tong)

Its 2 and 3/4 inches in diameter.
No its to big for the Y.
Plus, I dont think it would stay on, on the other side of the pipe (where mine first popped off) not only is there a clamp but there is a screw type deal with 2 big teeth that seat into the pipe to stay on. So im guessing there is alot of pressure at that point of the pipe so plugging it might not be the best idea.
 

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Discussion Starter · #15 ·
Re: (00VR6Tong)

Quote, originally posted by Supplicium »
More boost, no.
Faster spool, seems slight (prob not)
Throttle is more touchy, power feels to get to the ground a little quicker.
It feels like how it would feel if you added a CAI thats the best way I can explain what I can feel.

To you it might be. But not to all.
If you want to do the mod, do it right. Dont Jerry rig it. Use OEM when ever possible. Im not freakin out over 80 bucks when I just spent 25k. I have no problem spending a lil extra to get the better products or w/e.



Modified by Supplicium at 5:10 PM 7-31-2006
 

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Re: DIY A3 Throttle Pipe (Supplicium)

Question: is there any reason why one can't simply remove the plastic tube that runs along the passenger side of the engine and seal the resulting hole in the "front" air pipe?
 

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Discussion Starter · #20 ·
I suppose you can, but from what I encountered on the other side of the pipe where it connects to the intercooler is that the pressure inside the pipe is pretty extreme.
I snapped the intercooler pipe on (it has a twist with 2 teeth in it to seat aswell as an outter clamp). I didnt tighten the clamp down good and the whole pipe popped off.
I dont think a plug would be able stay on during use of the car.
 
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