Stutter at 3.5k+ RPM if more than 1/2 Throttle
1995 Subaru WRX
-Only mod is exhaust from cat-tip
-During hard acceleration I will experience studders/bogging starting at 3.5k rpm and up. The stutters are very quick and inconsistently spaced(around 3 per second).
-If i accelerate normally I do not experience the issue
-If I am in neutral and I rev the motor I do not experience the bogging.
Any input would be great. I tried searching but nothing seemed to match my symptoms.