Modified GT 1.4 TSI airbox

[POLARBEAR666]

Hi guys,

I decided to improve my GT 1.4 TSI airbox by cutting out a small square hole where the factory over the radiator air intake should be going into, then removing the plastic screen that covers 90% of the surface area under the air filter and finally installing a circular hole in the right hand side of the airbox to mount a cold air pipe to the lower foglight area.

looks totally stealth from above as the pipe is black and the factory system is still 100% present.

This should flow enough air to compete with aftermarket air intakes as the intake size of the turbo and supercharger is so small that the existing pipework from factory is more than enough provided the airbox gets better air feeds like I have done.

Enjoy.

[Shteifen]

good job man.

it should have come like that from factory!

-steve

[DaveMack]

Have you had the chance to get a feel for how it might have changed performance yet Polar Bear?

Dave

[POLARBEAR666]

I feel like the car is a little more perky when its been running for a while. To be honest the cold air pipe on the right hand side is probably overkill for our little engines but because I had it there and had the pipe it was easy to do. I will put a longer pipe on in future and have it hooked up to a circular hole in the foglight covers.

To get 90% of the gain I think you should just open your airbox up so the stock intake can work properly. Do this by cutting the square hole I cut to allow straight airflow from the factory induction.

Also remove the plastic screen you will find under the air filter, it pops out and so you could put it back before a service and they would not even see the square hole you cut! factory!

To make the square hole use a soldering iron, just stick it into the plastic and drag it around. Makes fairly easy holes and they can be quite precise. I just did it quickly. You can also melt the plastic back onto a pipe and make it snug



The rest of the system that I can see seems fairly optimal at 200hp levels. Even the intercooler pipework seems good. I ran 300kw@wheels in my WRx which I just sold and its pipework to and from intercooler was similar in size to the TSI's. 2 inch pipe can flow 600hp so don't let any rice shops sell you on 2.5" or 3" intercooler pipes!

EXHAUST will be the big improvement but I have not come across anyone who has posted results or if it causes fuel cut issues etc. The stock exhaust is great from the dump pipe back so I would only put a new dump pipe and cat and then replace the rear muffler. The rest of the factory system is mandrel bends in stainless which is as good as it gets.





Got tint?

[DAN682]

Nice work Polar.

How many K's does the GT have? It looks like new!

[POLARBEAR666]

It had 4000 when I got it.

I got it for about 7k less than new price with free tint and extended rego.

[GoLfMan]

nice write up mate good work

[DAN682]

It had 4000 when I got it.

I got it for about 7k less than new price with free tint and extended rego.

Nice work!

Is it an early 07?

Does it have the half size or Full side MFD?

[POLARBEAR666]

It is a built in May 2007 car. The MFD is the red display I assume and it is full size.

The only diff between my car and the 2008 is no MP3 player which will soon be rectified with full sat nav system and GT badge on back instead of TSI.

Are there any other differences?

[DAN682]

Yours and mine are about the same then. Mine is July 07 I think.

Mine had the MP3 player and has the TSI badge on the back.

I think the front grille on the old one's just had GT but the newer ones have GT Sport