Are these meant to be 550cc?
SUBARU EJ20 Impreza WRX STI GC8 500cc Fuel Injector on eBay, also Engine Tuning Parts, Performance Tuning Parts, Car Tuning Styling, Cars, Parts Vehicles (end time 15-Mar-09 11:35:21 GMT)

In the not to distant future i'm hoping to get a tdo5 18g turbo

I currently have a v3 sti with fmic, apexi power fc, decat, sard bov and air filter which was pushing out 322bhp and dropping off quite a lot in the top revs as I think the baileys dump valve I had couldn't hold the 1.4 bar boost.

At current the 440s are using 80% of there duty so just wondering if you guys will think the 440s will need upgrading when the turbo is changed, whilst the turbo is done i'll probably put on some ported headers as well that have been heat wrapped.

 

these people are known for selling cheap copies of stuff, avoid i'd say

 

Those 500's will be fine. I remember buying some of those years ago