It has been suggested to me to change the turbo on my 02 WRX for a jap inport 03 STI turbo. has anyone done this and what kind of gains could i expect.

Is there a difference in size for the inport sti turbo to the uk spec one. as there a always sti being split for spares.

Injectors.... what are they and do they need to be change as well. sorry for the chimp question!

Maybe i should have just brought an STI in the first place doh

 

arent the jap turbos twin scroll turbos,,i think they are you know, dunno if they fit straight in,very much doubt it..

 

just repeating an opinion of somebody, but you know what its like everybody seems to have an opinion, whether they are any good is another matter.

just want more horses and more of a bang

and soon

 

You'd probably be better off getting your exhaust decatted and a remap first (could see up to 280bhp). When you start fiddling with turbo's it starts to get expensive!

NS04

PS you don't want a bang!!

 

Fit an STI ihi VF35 and you'll be at 320-330bhp at 1.25bar.
The VF35 has the best spoolup. I've had at 2850rpm 1.0 bar and full boost at 3100-3200rpm.I ran it with an exhaust header, FMIC,walbro fuelpump at 1.5 bar and managed 365bhp, but eventualy knackered my gearbox.........twice

 

Got 310.8 /270 with a V28 , standard fuel injectors Full Decat up & down pipe Tek 3 remap by Scoobyclinic.