2005 STi
Mods: Perrin catless dp
Apexi N1 exhaust
Injen cold air

In 5th gear I get a fuel cut right before the end of the 1/4 mile.

I have an appointment at SX-Engineering to get the ECUtek software and a tune on thursday, and I was wondering if I will still be getting the fuel cut?

Thanks you.

Once u get the tune they should be able to fix that problem. Most likley ur ecu is reading more boost with the extra mods so its cutting fuel. Thats a minor problem so it wont be to hard to fix it with a competent tuner.