I was playing about in the engine on my vec today, checking the oil, seeing if the T/B needs a clean etc, when i noticed that this pipe was split in 3 places. Im not sure what it is or if its important:

Its the one circled in red, it goes from the pipe running from the airbox to the t/b, into the engine (looks like on the fuel rail but im not that engine savvy). Its split on all 3 corners
Can anyone tell me a) what it is and what it does and b) how much are they and does anyone have a part number?
Thanks guys 🙂