I think you mean the turbo intake pipe mate(Tip)? This pipe connects to the turbo and upto the air flow meter (Maf) which inturn connects to the airbox.
If so and you want a silicone jobby then you can buy either an AGU/AUM/ARZ one as the all the same pretty much.
I would recomend creation sports but ebay ones are not bad from what iv heard.
You can also buy a forge one if you have money to spend..