Hey guys i just recently upgraded to a 94 wrx and it was running fine on the way home and when i got in it the next day as i was driving i went to give it a bit and hit 8 psi which it was always runs and it cuts out anyone know wat it could be anyinfo would be appricated.

Well to start off with. a 94 rex is supposed to run 11psi stock.

Cut out is strange at only 8psi. Check the codes on the ECU.

Normally boost cut comes in at around 13.5/14psi IIRC. but seeing as yours cut at 8psi, thats quite strange unless you have your boost gauge Teed into the wrong vacuum line and all your reading is wastegate pressure.

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RS Liberty - Because WRX's are only good for parts...