If you add Uppipe, Downpipe, and MBC you should prolly see around 220 AWHP which would prolly be good for a high 4 second 0-60 and a mid 13 second quarter mile pass. Im not really sure if the pulleys are worth it, i would get the intercooler hoses instead and maybe a UTEC. Also, if u think u will upgrade to bigger turbo in the future instead of getting an MBC, get an EBC, save yourself some time and hassle.
the results are not so clear and some opinions even say they unbalance somehow your car,,even the lightweight ones.
the underdriven ones,,ARGHHHHH,,those i would never think about .
I love my A/C and my stereo system