That is a very nice kit! If the filter is good, then your money is well spent. I built something similar myself but that's because there wasn't anything that nice out there.
Even if the filter is cheap you can put on a better one later.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
See My Mods
'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black