i recently bought a VF28 turbo unit off of a P1 and the later STI'S i was planning on putting it onto my 94 wrx import.
Was just wondering if i will need to get the car re-mapped or anything?
It's currently got a cat back exhaust and filter.
Any help much appreciated.

Thanks

 

WHY ?

Unless your WRX is a Wagon the turbo on the saloon is bigger, stonger and more capable then the VF28.
Just because it's off an STi doesn't make it better.

 

oh reali, i got told its bigger as i have currently got a TD04 on my saloon.
Would u reccomend me kepping current one then and selling the other one?

 

You have a TD05 on the Saloon as per all WRX and STi Pre96 Saloons and all UK Saloons and Wagons.
Only the WRX Wagon and post 97 classic shape Impreza's came with TD04.

Besides to fit a VF28 onto a Pre96 car you would have to convert either the Turbo to 90 degree entry or convert the current intake on the car to Front Entry.

I would sell it on, it's got to be worth about £150 - £180 on ebay if there's no play in the shaft.