the search button will become your friend. the DV question has been asked many many times before. basically they don't tend to work as the 1.8T needs a re-circulating dump valve, the forge 007P works well but there is also the split-R from forge that also works. it is a 50/50 jobby that dumps back into the intake and into the atmosphere so you get the whoosh noise. with filters the choice is massive, there are filters from ramair, dynatwist, BMC and then there are the obvious K&N and pipercross filters. if you do decide on a induction kit it is best to have an enclosed filter with a decent cold air feed so you don't suck hot air into the engine. there are replacement panel filters too which are a cheaper option, green filters are rated highly on here.
if you eventually decide to get your LCR remapped (you will) then an uprated DV is a must as the standard plastic bosch valve tends to split under higher boost.
here is my LCR with the BMC carbon filter.