front mount kit questions

[Roots]

So im looking for a 2.5" diameter front mount intercooler kit.

Ive got a bfb engined b7, which is the same as a b6, and wkndered if anyone had a definitive list of what pipework is needed if i was to buy a universal ebay cooler / toyosports one and then buy the pipework too.

Would i need a map sensor pipe if doing it this way?

I cant find a 2.5" kit. Only 2.25" or 3" (too big)

Any help would be excellent.

Thanks