To upgrade power or not to upgrade power????
 

Basically ive got a 2004WRX with turbo back 3"cobra exhaust with sports cat and a remapp by Duncan Dynamix. And to be honest the improvement was very impressive!!

Ive put together some parts these being

Walbro 255
NGK PFR7B's
Sti intercooler but also have prodrive y pipe so thinking of keeping the wrx intercooler with prodrive y pipe as dont really want to change to an sti scoop/diverter
Sti up pipe
Sti Injectors

Last thing i need to buy is a turbo, was thinking vf28,35,35

Of course remapp after fitting!!

Interested in hearing from anyone that has done these upgrades and how much of a difference it made performance wise as im still in two minds whether to fit/upgrade or not??

Thanks for any advice :thumb:

02 wrx, I had similar spec to you to start with but turbo oil seals started to go so I added

'pinks'
PFR7Bs
STI intercooler
HRC 255 lph fuel pump
vf30

It was certainly worth it, little bit of lag compared to td04 but once up to 3k rpm pulls hard all the way through the range. Maybe tails off slightly at the top end but much much better than the td04. Miles per gallon is reduced but :Dper gallon is another story.

tdo4 280 bhp but nice torque at low end, vf34 320 bhp 290 ftbl ,the pull is ok but not as rapid in 1st and 2nd is worth it going up a bit but the standard engine/gearbox will have a limit of power, ive kept my standard block to 320 bhp,could go bit more but v power keeps my pocket busy enough....